8.75% is the change from 663 to 721
Calculation steps:
[( 721 - 663 ) ÷ 663] x 100 = 8.75%
Formula
Percentage change = [(721 - 663) / 663] x 100
Subtract the new number by the original number
721 - 663 = 58
58 ÷ 663 = 0.08748114630467571
0.08748114630467571 x 100 = 8.75%