222.8% is the change from 250 to 807
Calculation steps:
[( 807 - 250 ) ÷ 250] x 100 = 222.8%
Formula
Percentage change = [(807 - 250) / 250] x 100
Subtract the new number by the original number
807 - 250 = 557
557 ÷ 250 = 2.228
2.228 x 100 = 222.8%
Example