262.4% is the change from 250 to 906
Calculation steps:
[( 906 - 250 ) ÷ 250] x 100 = 262.4%
Formula
Percentage change = [(906 - 250) / 250] x 100
Subtract the new number by the original number
906 - 250 = 656
656 ÷ 250 = 2.624
2.624 x 100 = 262.4%
Example