591.78% is the change from 73 to 505
Calculation steps:
[( 505 - 73 ) ÷ 73] x 100 = 591.78%
Formula
Percentage change = [(505 - 73) / 73] x 100
Subtract the new number by the original number
505 - 73 = 432
432 ÷ 73 = 5.917808219178082
5.917808219178082 x 100 = 591.78%