diff --git a/scripts/code.py b/scripts/code.py
index b269e67d..20f92133 100755
--- a/scripts/code.py
+++ b/scripts/code.py
@@ -1150,9 +1150,13 @@ if __name__ == "__main__":
     parser.add_argument(
             '-d', '--diff',
             help="Specify CSV/JSON file to diff against.")
+    # need a special Action here because this % causes problems
+    class StoreTruePercent(argparse._StoreTrueAction):
+        def format_usage(self):
+            return '-%%'
     parser.add_argument(
-            '-p', '--percent',
-            action='store_true',
+            '-%', '--percent',
+            action=StoreTruePercent,
             help="Only show percentage change, not a full diff.")
     parser.add_argument(
             '-C', '--compare',
diff --git a/scripts/cov.py b/scripts/cov.py
index 6a1b961e..d318cd84 100755
--- a/scripts/cov.py
+++ b/scripts/cov.py
@@ -1129,9 +1129,13 @@ if __name__ == "__main__":
     parser.add_argument(
             '-d', '--diff',
             help="Specify CSV/JSON file to diff against.")
+    # need a special Action here because this % causes problems
+    class StoreTruePercent(argparse._StoreTrueAction):
+        def format_usage(self):
+            return '-%%'
     parser.add_argument(
-            '-p', '--percent',
-            action='store_true',
+            '-%', '--percent',
+            action=StoreTruePercent,
             help="Only show percentage change, not a full diff.")
     parser.add_argument(
             '-C', '--compare',
diff --git a/scripts/csv.py b/scripts/csv.py
index dcd3aceb..bc64f2f4 100755
--- a/scripts/csv.py
+++ b/scripts/csv.py
@@ -3215,9 +3215,13 @@ if __name__ == "__main__":
     parser.add_argument(
             '-d', '--diff',
             help="Specify CSV/JSON file to diff against.")
+    # need a special Action here because this % causes problems
+    class StoreTruePercent(argparse._StoreTrueAction):
+        def format_usage(self):
+            return '-%%'
     parser.add_argument(
-            '-p', '--percent',
-            action='store_true',
+            '-%', '--percent',
+            action=StoreTruePercent,
             help="Only show percentage change, not a full diff.")
     parser.add_argument(
             '-C', '--compare',
diff --git a/scripts/ctx.py b/scripts/ctx.py
index 01d8919f..7aa0a095 100755
--- a/scripts/ctx.py
+++ b/scripts/ctx.py
@@ -1445,9 +1445,13 @@ if __name__ == "__main__":
     parser.add_argument(
             '-d', '--diff',
             help="Specify CSV/JSON file to diff against.")
+    # need a special Action here because this % causes problems
+    class StoreTruePercent(argparse._StoreTrueAction):
+        def format_usage(self):
+            return '-%%'
     parser.add_argument(
-            '-p', '--percent',
-            action='store_true',
+            '-%', '--percent',
+            action=StoreTruePercent,
             help="Only show percentage change, not a full diff.")
     parser.add_argument(
             '-C', '--compare',
diff --git a/scripts/data.py b/scripts/data.py
index 72f3a205..004c9c54 100755
--- a/scripts/data.py
+++ b/scripts/data.py
@@ -1150,9 +1150,13 @@ if __name__ == "__main__":
     parser.add_argument(
             '-d', '--diff',
             help="Specify CSV/JSON file to diff against.")
+    # need a special Action here because this % causes problems
+    class StoreTruePercent(argparse._StoreTrueAction):
+        def format_usage(self):
+            return '-%%'
     parser.add_argument(
-            '-p', '--percent',
-            action='store_true',
+            '-%', '--percent',
+            action=StoreTruePercent,
             help="Only show percentage change, not a full diff.")
     parser.add_argument(
             '-C', '--compare',
diff --git a/scripts/perf.py b/scripts/perf.py
index 5cfd4eae..3aad1be5 100755
--- a/scripts/perf.py
+++ b/scripts/perf.py
@@ -1689,9 +1689,13 @@ if __name__ == "__main__":
     parser.add_argument(
             '-d', '--diff',
             help="Specify CSV/JSON file to diff against.")
+    # need a special Action here because this % causes problems
+    class StoreTruePercent(argparse._StoreTrueAction):
+        def format_usage(self):
+            return '-%%'
     parser.add_argument(
-            '-p', '--percent',
-            action='store_true',
+            '-%', '--percent',
+            action=StoreTruePercent,
             help="Only show percentage change, not a full diff.")
     parser.add_argument(
             '-C', '--compare',
diff --git a/scripts/perfbd.py b/scripts/perfbd.py
index 6119f018..3a835cd7 100755
--- a/scripts/perfbd.py
+++ b/scripts/perfbd.py
@@ -1690,9 +1690,13 @@ if __name__ == "__main__":
     parser.add_argument(
             '-d', '--diff',
             help="Specify CSV/JSON file to diff against.")
+    # need a special Action here because this % causes problems
+    class StoreTruePercent(argparse._StoreTrueAction):
+        def format_usage(self):
+            return '-%%'
     parser.add_argument(
-            '-p', '--percent',
-            action='store_true',
+            '-%', '--percent',
+            action=StoreTruePercent,
             help="Only show percentage change, not a full diff.")
     parser.add_argument(
             '-C', '--compare',
diff --git a/scripts/stack.py b/scripts/stack.py
index a50ddd3d..0f621f4a 100755
--- a/scripts/stack.py
+++ b/scripts/stack.py
@@ -1188,9 +1188,13 @@ if __name__ == "__main__":
     parser.add_argument(
             '-d', '--diff',
             help="Specify CSV/JSON file to diff against.")
+    # need a special Action here because this % causes problems
+    class StoreTruePercent(argparse._StoreTrueAction):
+        def format_usage(self):
+            return '-%%'
     parser.add_argument(
-            '-p', '--percent',
-            action='store_true',
+            '-%', '--percent',
+            action=StoreTruePercent,
             help="Only show percentage change, not a full diff.")
     parser.add_argument(
             '-C', '--compare',
diff --git a/scripts/structs.py b/scripts/structs.py
index 05b17eac..3019318c 100755
--- a/scripts/structs.py
+++ b/scripts/structs.py
@@ -1334,9 +1334,13 @@ if __name__ == "__main__":
     parser.add_argument(
             '-d', '--diff',
             help="Specify CSV/JSON file to diff against.")
+    # need a special Action here because this % causes problems
+    class StoreTruePercent(argparse._StoreTrueAction):
+        def format_usage(self):
+            return '-%%'
     parser.add_argument(
-            '-p', '--percent',
-            action='store_true',
+            '-%', '--percent',
+            action=StoreTruePercent,
             help="Only show percentage change, not a full diff.")
     parser.add_argument(
             '-C', '--compare',