-MSG_FILE_JUST_RIGHT = The firmware size is fine - $(CURRENT_SIZE)/$(MAX_SIZE) ($(FREE_SIZE) bytes free)\n
-MSG_FILE_NEAR_LIMIT = The firmware size is approaching the maximum - $(CURRENT_SIZE)/$(MAX_SIZE) ($(FREE_SIZE) bytes free)\n
+MSG_FILE_JUST_RIGHT = The firmware size is fine - $(CURRENT_SIZE)/$(MAX_SIZE) ($(PERCENT_SIZE)%%, $(FREE_SIZE) bytes free)\n
+MSG_FILE_NEAR_LIMIT = The firmware size is approaching the maximum - $(CURRENT_SIZE)/$(MAX_SIZE) ($(PERCENT_SIZE)%%, $(FREE_SIZE) bytes free)\n