-23.08% is the change from 676 to 520
Calculation steps:
[( 520 - 676 ) ÷ 676] x 100 = -23.08%
Formula
Percentage change = [(520 - 676) / 676] x 100
Subtract the new number by the original number
520 - 676 = -156
-156 ÷ 676 = -0.23076923076923078
-0.23076923076923078 x 100 = -23.08%