diff --git a/src/scgenerator/variableparameters.py b/src/scgenerator/variableparameters.py
index fd9278e..f6ef0fb 100644
--- a/src/scgenerator/variableparameters.py
+++ b/src/scgenerator/variableparameters.py
@@ -83,6 +83,11 @@ def unit_formatter(
         def formatter(val):
             return f"{val:.{decimals}g}"
 
+    elif unit == "%":
+
+        def formatter(val):
+            return f"{100*val:.{decimals}g}%"
+
     else:
 
         def formatter(val):