38.56% is the change from 721 to 999
Calculation steps:
[( 999 - 721 ) ÷ 721] x 100 = 38.56%
Formula
Percentage change = [(999 - 721) / 721] x 100
Subtract the new number by the original number
999 - 721 = 278
278 ÷ 721 = 0.3855755894590846
0.3855755894590846 x 100 = 38.56%