17.39% is the change from 644 to 756
Calculation steps:
[( 756 - 644 ) ÷ 644] x 100 = 17.39%
Formula
Percentage change = [(756 - 644) / 644] x 100
Subtract the new number by the original number
756 - 644 = 112
112 ÷ 644 = 0.17391304347826086
0.17391304347826086 x 100 = 17.39%