20.6% is the change from 432 to 521
Calculation steps:
[( 521 - 432 ) ÷ 432] x 100 = 20.6%
Formula
Percentage change = [(521 - 432) / 432] x 100
Subtract the new number by the original number
521 - 432 = 89
89 ÷ 432 = 0.20601851851851852
0.20601851851851852 x 100 = 20.6%