711.11% is the change from 9 to 73
Calculation steps:
[( 73 - 9 ) ÷ 9] x 100 = 711.11%
Formula
Percentage change = [(73 - 9) / 9] x 100
Subtract the new number by the original number
73 - 9 = 64
64 ÷ 9 = 7.111111111111111
7.111111111111111 x 100 = 711.11%