21.1% is the change from 436 to 528
Calculation steps:
[( 528 - 436 ) ÷ 436] x 100 = 21.1%
Formula
Percentage change = [(528 - 436) / 436] x 100
Subtract the new number by the original number
528 - 436 = 92
92 ÷ 436 = 0.21100917431192662
0.21100917431192662 x 100 = 21.1%