-46.12% is the change from 477 to 257
Calculation steps:
[( 257 - 477 ) ÷ 477] x 100 = -46.12%
Formula
Percentage change = [(257 - 477) / 477] x 100
Subtract the new number by the original number
257 - 477 = -220
-220 ÷ 477 = -0.4612159329140461
-0.4612159329140461 x 100 = -46.12%