53.46% is the change from 535 to 821
Calculation steps:
[( 821 - 535 ) ÷ 535] x 100 = 53.46%
Formula
Percentage change = [(821 - 535) / 535] x 100
Subtract the new number by the original number
821 - 535 = 286
286 ÷ 535 = 0.5345794392523364
0.5345794392523364 x 100 = 53.46%