HTP vs MoN

Or in simpler terms

1. Get Total ATK value
2. Estimate New Items' ATK value
3. Calculate:
(Old Items' ATK - New Items' ATK)/Total ATK = % needed to cover.

In this case, "New ATK" would be 0 and "Old ATK" would be 10.

Even simpler:

Can you afford a non potentialed HTP?

yes- Can you afford a pre potentialed one?-> yes: Buy it.

If no to any of the above: Get MoN for free. Too bad CWKPQ is closed. LOL j/k you can has deputy star.