239.36% is the change from 249 to 845
Calculation steps:
[( 845 - 249 ) ÷ 249] x 100 = 239.36%
Formula
Percentage change = [(845 - 249) / 249] x 100
Subtract the new number by the original number
845 - 249 = 596
596 ÷ 249 = 2.393574297188755
2.393574297188755 x 100 = 239.36%
Example