20.32% is the change from 433 to 521
Calculation steps:
[( 521 - 433 ) ÷ 433] x 100 = 20.32%
Formula
Percentage change = [(521 - 433) / 433] x 100
Subtract the new number by the original number
521 - 433 = 88
88 ÷ 433 = 0.20323325635103925
0.20323325635103925 x 100 = 20.32%