-87.83% is the change from 600 to 73
Calculation steps:
[( 73 - 600 ) ÷ 600] x 100 = -87.83%
Formula
Percentage change = [(73 - 600) / 600] x 100
Subtract the new number by the original number
73 - 600 = -527
-527 ÷ 600 = -0.8783333333333333
-0.8783333333333333 x 100 = -87.83%