13.77% is the change from 501 to 570
Calculation steps:
[( 570 - 501 ) ÷ 501] x 100 = 13.77%
Formula
Percentage change = [(570 - 501) / 501] x 100
Subtract the new number by the original number
570 - 501 = 69
69 ÷ 501 = 0.1377245508982036
0.1377245508982036 x 100 = 13.77%