20.75% is the change from 535 to 646
Calculation steps:
[( 646 - 535 ) ÷ 535] x 100 = 20.75%
Formula
Percentage change = [(646 - 535) / 535] x 100
Subtract the new number by the original number
646 - 535 = 111
111 ÷ 535 = 0.20747663551401868
0.20747663551401868 x 100 = 20.75%