42.77% is the change from 505 to 721
Calculation steps:
[( 721 - 505 ) ÷ 505] x 100 = 42.77%
Formula
Percentage change = [(721 - 505) / 505] x 100
Subtract the new number by the original number
721 - 505 = 216
216 ÷ 505 = 0.4277227722772277
0.4277227722772277 x 100 = 42.77%