13.12% is the change from 587 to 664
Calculation steps:
[( 664 - 587 ) ÷ 587] x 100 = 13.12%
Formula
Percentage change = [(664 - 587) / 587] x 100
Subtract the new number by the original number
664 - 587 = 77
77 ÷ 587 = 0.131175468483816
0.131175468483816 x 100 = 13.12%