73.08% is the change from 509 to 881
Calculation steps:
[( 881 - 509 ) ÷ 509] x 100 = 73.08%
Formula
Percentage change = [(881 - 509) / 509] x 100
Subtract the new number by the original number
881 - 509 = 372
372 ÷ 509 = 0.730844793713163
0.730844793713163 x 100 = 73.08%