435% is the change from 120 to 642
Calculation steps:
[( 642 - 120 ) ÷ 120] x 100 = 435%
Formula
Percentage change = [(642 - 120) / 120] x 100
Subtract the new number by the original number
642 - 120 = 522
522 ÷ 120 = 4.35
4.35 x 100 = 435%
Example