-86% is the change from 407 to 57
Calculation steps:
[( 57 - 407 ) ÷ 407] x 100 = -86%
Formula
Percentage change = [(57 - 407) / 407] x 100
Subtract the new number by the original number
57 - 407 = -350
-350 ÷ 407 = -0.85995085995086
-0.85995085995086 x 100 = -86%