89.31% is the change from 290 to 549
Calculation steps:
[( 549 - 290 ) ÷ 290] x 100 = 89.31%
Formula
Percentage change = [(549 - 290) / 290] x 100
Subtract the new number by the original number
549 - 290 = 259
259 ÷ 290 = 0.8931034482758621
0.8931034482758621 x 100 = 89.31%