-42.17% is the change from 479 to 277
Calculation steps:
[( 277 - 479 ) ÷ 479] x 100 = -42.17%
Formula
Percentage change = [(277 - 479) / 479] x 100
Subtract the new number by the original number
277 - 479 = -202
-202 ÷ 479 = -0.42171189979123175
-0.42171189979123175 x 100 = -42.17%