49.15% is the change from 590 to 880
Calculation steps:
[( 880 - 590 ) ÷ 590] x 100 = 49.15%
Formula
Percentage change = [(880 - 590) / 590] x 100
Subtract the new number by the original number
880 - 590 = 290
290 ÷ 590 = 0.4915254237288136
0.4915254237288136 x 100 = 49.15%