250% is the change from 268 to 938
Calculation steps:
[( 938 - 268 ) ÷ 268] x 100 = 250%
Formula
Percentage change = [(938 - 268) / 268] x 100
Subtract the new number by the original number
938 - 268 = 670
670 ÷ 268 = 2.5
2.5 x 100 = 250%
Example