-85.75% is the change from 400 to 57
Calculation steps:
[( 57 - 400 ) ÷ 400] x 100 = -85.75%
Formula
Percentage change = [(57 - 400) / 400] x 100
Subtract the new number by the original number
57 - 400 = -343
-343 ÷ 400 = -0.8575
-0.8575 x 100 = -85.75%