609.59% is the change from 73 to 518
Calculation steps:
[( 518 - 73 ) ÷ 73] x 100 = 609.59%
Formula
Percentage change = [(518 - 73) / 73] x 100
Subtract the new number by the original number
518 - 73 = 445
445 ÷ 73 = 6.095890410958904
6.095890410958904 x 100 = 609.59%