4125% is the change from 12 to 507
Calculation steps:
[( 507 - 12 ) ÷ 12] x 100 = 4125%
Formula
Percentage change = [(507 - 12) / 12] x 100
Subtract the new number by the original number
507 - 12 = 495
495 ÷ 12 = 41.25
41.25 x 100 = 4125%
Example