49.48% is the change from 582 to 870
Calculation steps:
[( 870 - 582 ) ÷ 582] x 100 = 49.48%
Formula
Percentage change = [(870 - 582) / 582] x 100
Subtract the new number by the original number
870 - 582 = 288
288 ÷ 582 = 0.4948453608247423
0.4948453608247423 x 100 = 49.48%