241.38% is the change from 290 to 990
Calculation steps:
[( 990 - 290 ) ÷ 290] x 100 = 241.38%
Formula
Percentage change = [(990 - 290) / 290] x 100
Subtract the new number by the original number
990 - 290 = 700
700 ÷ 290 = 2.413793103448276
2.413793103448276 x 100 = 241.38%