295.2% is the change from 250 to 988
Calculation steps:
[( 988 - 250 ) ÷ 250] x 100 = 295.2%
Formula
Percentage change = [(988 - 250) / 250] x 100
Subtract the new number by the original number
988 - 250 = 738
738 ÷ 250 = 2.952
2.952 x 100 = 295.2%
Example