237.24% is the change from 290 to 978
Calculation steps:
[( 978 - 290 ) ÷ 290] x 100 = 237.24%
Formula
Percentage change = [(978 - 290) / 290] x 100
Subtract the new number by the original number
978 - 290 = 688
688 ÷ 290 = 2.372413793103448
2.372413793103448 x 100 = 237.24%