-93.29% is the change from 849 to 57
Calculation steps:
[( 57 - 849 ) ÷ 849] x 100 = -93.29%
Formula
Percentage change = [(57 - 849) / 849] x 100
Subtract the new number by the original number
57 - 849 = -792
-792 ÷ 849 = -0.9328621908127208
-0.9328621908127208 x 100 = -93.29%