-87.3% is the change from 575 to 73
Calculation steps:
[( 73 - 575 ) ÷ 575] x 100 = -87.3%
Formula
Percentage change = [(73 - 575) / 575] x 100
Subtract the new number by the original number
73 - 575 = -502
-502 ÷ 575 = -0.8730434782608696
-0.8730434782608696 x 100 = -87.3%