5075% is the change from 12 to 621
Calculation steps:
[( 621 - 12 ) ÷ 12] x 100 = 5075%
Formula
Percentage change = [(621 - 12) / 12] x 100
Subtract the new number by the original number
621 - 12 = 609
609 ÷ 12 = 50.75
50.75 x 100 = 5075%
Example