337.5% is the change from 120 to 525
Calculation steps:
[( 525 - 120 ) ÷ 120] x 100 = 337.5%
Formula
Percentage change = [(525 - 120) / 120] x 100
Subtract the new number by the original number
525 - 120 = 405
405 ÷ 120 = 3.375
3.375 x 100 = 337.5%
Example