12.17% is the change from 575 to 645
Calculation steps:
[( 645 - 575 ) ÷ 575] x 100 = 12.17%
Formula
Percentage change = [(645 - 575) / 575] x 100
Subtract the new number by the original number
645 - 575 = 70
70 ÷ 575 = 0.12173913043478261
0.12173913043478261 x 100 = 12.17%