90.4% is the change from 250 to 476
Calculation steps:
[( 476 - 250 ) ÷ 250] x 100 = 90.4%
Formula
Percentage change = [(476 - 250) / 250] x 100
Subtract the new number by the original number
476 - 250 = 226
226 ÷ 250 = 0.904
0.904 x 100 = 90.4%
Example