23.4% is the change from 624 to 770
Calculation steps:
[( 770 - 624 ) ÷ 624] x 100 = 23.4%
Formula
Percentage change = [(770 - 624) / 624] x 100
Subtract the new number by the original number
770 - 624 = 146
146 ÷ 624 = 0.23397435897435898
0.23397435897435898 x 100 = 23.4%