12% is the change from 575 to 644
Calculation steps:
[( 644 - 575 ) ÷ 575] x 100 = 12%
Formula
Percentage change = [(644 - 575) / 575] x 100
Subtract the new number by the original number
644 - 575 = 69
69 ÷ 575 = 0.12
0.12 x 100 = 12%
Example