-93.24% is the change from 843 to 57
Calculation steps:
[( 57 - 843 ) ÷ 843] x 100 = -93.24%
Formula
Percentage change = [(57 - 843) / 843] x 100
Subtract the new number by the original number
57 - 843 = -786
-786 ÷ 843 = -0.9323843416370107
-0.9323843416370107 x 100 = -93.24%