Wrong calculation

[nanotexnik]

There is a very serious error in this calculator im my mind.

The situation is synthetic - for clarity.
Try situations when you have 100% chance of a critical hit.(just for simplify)
Let's consider situations when we initially have +0% increase to crit +10000% increase to additiv damage. And now let's try to compare what will happen if we add +100% increase to additiv or to +100% crit. And we will find that these situations are equivalent by dps.

But it seems that this should not be true - the increase to crit should increase the dps by two times!