-20.74% is the change from 651 to 516
Calculation steps:
[( 516 - 651 ) ÷ 651] x 100 = -20.74%
Formula
Percentage change = [(516 - 651) / 651] x 100
Subtract the new number by the original number
516 - 651 = -135
-135 ÷ 651 = -0.2073732718894009
-0.2073732718894009 x 100 = -20.74%