49.14% is the change from 584 to 871
Calculation steps:
[( 871 - 584 ) ÷ 584] x 100 = 49.14%
Formula
Percentage change = [(871 - 584) / 584] x 100
Subtract the new number by the original number
871 - 584 = 287
287 ÷ 584 = 0.4914383561643836
0.4914383561643836 x 100 = 49.14%