-93.19% is the change from 837 to 57
Calculation steps:
[( 57 - 837 ) ÷ 837] x 100 = -93.19%
Formula
Percentage change = [(57 - 837) / 837] x 100
Subtract the new number by the original number
57 - 837 = -780
-780 ÷ 837 = -0.931899641577061
-0.931899641577061 x 100 = -93.19%