71.94% is the change from 581 to 999
Calculation steps:
[( 999 - 581 ) ÷ 581] x 100 = 71.94%
Formula
Percentage change = [(999 - 581) / 581] x 100
Subtract the new number by the original number
999 - 581 = 418
418 ÷ 581 = 0.7194492254733219
0.7194492254733219 x 100 = 71.94%