-91.7% is the change from 687 to 57
Calculation steps:
[( 57 - 687 ) ÷ 687] x 100 = -91.7%
Formula
Percentage change = [(57 - 687) / 687] x 100
Subtract the new number by the original number
57 - 687 = -630
-630 ÷ 687 = -0.9170305676855895
-0.9170305676855895 x 100 = -91.7%