-46.57% is the change from 481 to 257
Calculation steps:
[( 257 - 481 ) ÷ 481] x 100 = -46.57%
Formula
Percentage change = [(257 - 481) / 481] x 100
Subtract the new number by the original number
257 - 481 = -224
-224 ÷ 481 = -0.4656964656964657
-0.4656964656964657 x 100 = -46.57%