589.04% is the change from 73 to 503
Calculation steps:
[( 503 - 73 ) ÷ 73] x 100 = 589.04%
Formula
Percentage change = [(503 - 73) / 73] x 100
Subtract the new number by the original number
503 - 73 = 430
430 ÷ 73 = 5.890410958904109
5.890410958904109 x 100 = 589.04%