-13.12% is the change from 587 to 510
Calculation steps:
[( 510 - 587 ) ÷ 587] x 100 = -13.12%
Formula
Percentage change = [(510 - 587) / 587] x 100
Subtract the new number by the original number
510 - 587 = -77
-77 ÷ 587 = -0.131175468483816
-0.131175468483816 x 100 = -13.12%