-45.78% is the change from 474 to 257
Calculation steps:
[( 257 - 474 ) ÷ 474] x 100 = -45.78%
Formula
Percentage change = [(257 - 474) / 474] x 100
Subtract the new number by the original number
257 - 474 = -217
-217 ÷ 474 = -0.4578059071729958
-0.4578059071729958 x 100 = -45.78%