-84.46% is the change from 457 to 71
Calculation steps:
[( 71 - 457 ) ÷ 457] x 100 = -84.46%
Formula
Percentage change = [(71 - 457) / 457] x 100
Subtract the new number by the original number
71 - 457 = -386
-386 ÷ 457 = -0.8446389496717724
-0.8446389496717724 x 100 = -84.46%