266.4% is the change from 250 to 916
Calculation steps:
[( 916 - 250 ) ÷ 250] x 100 = 266.4%
Formula
Percentage change = [(916 - 250) / 250] x 100
Subtract the new number by the original number
916 - 250 = 666
666 ÷ 250 = 2.664
2.664 x 100 = 266.4%
Example