268.8% is the change from 250 to 922
Calculation steps:
[( 922 - 250 ) ÷ 250] x 100 = 268.8%
Formula
Percentage change = [(922 - 250) / 250] x 100
Subtract the new number by the original number
922 - 250 = 672
672 ÷ 250 = 2.688
2.688 x 100 = 268.8%
Example