520% is the change from 75 to 465
Calculation steps:
[( 465 - 75 ) ÷ 75] x 100 = 520%
Formula
Percentage change = [(465 - 75) / 75] x 100
Subtract the new number by the original number
465 - 75 = 390
390 ÷ 75 = 5.2
5.2 x 100 = 520%
Example