19.81% is the change from 535 to 641
Calculation steps:
[( 641 - 535 ) ÷ 535] x 100 = 19.81%
Formula
Percentage change = [(641 - 535) / 535] x 100
Subtract the new number by the original number
641 - 535 = 106
106 ÷ 535 = 0.19813084112149532
0.19813084112149532 x 100 = 19.81%