49.4% is the change from 583 to 871
Calculation steps:
[( 871 - 583 ) ÷ 583] x 100 = 49.4%
Formula
Percentage change = [(871 - 583) / 583] x 100
Subtract the new number by the original number
871 - 583 = 288
288 ÷ 583 = 0.4939965694682676
0.4939965694682676 x 100 = 49.4%