Calculate used area in percentage?
We are working with packaging design, and upcoming new rules mean that you can no longer print on more than 60% of the packaging surface. If it had only been solid surfaces, that percentage would have been fairly easy to calculate, but now it applies to text, different shaped logos, etc.
So what we are looking for is a simple way to see/calculate how much/percentage of the design area has been used.
For simplicity, we can assume that the packaging material is white (does not count) and all design + text + logos are in color (counts as used area).
Grateful for smart advices & suggestions!