21.15% is the change from 624 to 756
Calculation steps:
[( 756 - 624 ) ÷ 624] x 100 = 21.15%
Formula
Percentage change = [(756 - 624) / 624] x 100
Subtract the new number by the original number
756 - 624 = 132
132 ÷ 624 = 0.21153846153846154
0.21153846153846154 x 100 = 21.15%