20.93% is the change from 516 to 624
Calculation steps:
[( 624 - 516 ) ÷ 516] x 100 = 20.93%
Formula
Percentage change = [(624 - 516) / 516] x 100
Subtract the new number by the original number
624 - 516 = 108
108 ÷ 516 = 0.20930232558139536
0.20930232558139536 x 100 = 20.93%