231.38% is the change from 290 to 961
Calculation steps:
[( 961 - 290 ) ÷ 290] x 100 = 231.38%
Formula
Percentage change = [(961 - 290) / 290] x 100
Subtract the new number by the original number
961 - 290 = 671
671 ÷ 290 = 2.3137931034482757
2.3137931034482757 x 100 = 231.38%