-88.77% is the change from 650 to 73
Calculation steps:
[( 73 - 650 ) ÷ 650] x 100 = -88.77%
Formula
Percentage change = [(73 - 650) / 650] x 100
Subtract the new number by the original number
73 - 650 = -577
-577 ÷ 650 = -0.8876923076923077
-0.8876923076923077 x 100 = -88.77%