215.2% is the change from 250 to 788
Calculation steps:
[( 788 - 250 ) ÷ 250] x 100 = 215.2%
Formula
Percentage change = [(788 - 250) / 250] x 100
Subtract the new number by the original number
788 - 250 = 538
538 ÷ 250 = 2.152
2.152 x 100 = 215.2%
Example