14.29% is the change from 560 to 640
Calculation steps:
[( 640 - 560 ) ÷ 560] x 100 = 14.29%
Formula
Percentage change = [(640 - 560) / 560] x 100
Subtract the new number by the original number
640 - 560 = 80
80 ÷ 560 = 0.14285714285714285
0.14285714285714285 x 100 = 14.29%