-39.39% is the change from 457 to 277
Calculation steps:
[( 277 - 457 ) ÷ 457] x 100 = -39.39%
Formula
Percentage change = [(277 - 457) / 457] x 100
Subtract the new number by the original number
277 - 457 = -180
-180 ÷ 457 = -0.3938730853391685
-0.3938730853391685 x 100 = -39.39%