15.64% is the change from 537 to 621
Calculation steps:
[( 621 - 537 ) ÷ 537] x 100 = 15.64%
Formula
Percentage change = [(621 - 537) / 537] x 100
Subtract the new number by the original number
621 - 537 = 84
84 ÷ 537 = 0.1564245810055866
0.1564245810055866 x 100 = 15.64%