92.4% is the change from 250 to 481
Calculation steps:
[( 481 - 250 ) ÷ 250] x 100 = 92.4%
Formula
Percentage change = [(481 - 250) / 250] x 100
Subtract the new number by the original number
481 - 250 = 231
231 ÷ 250 = 0.924
0.924 x 100 = 92.4%
Example