-90.77% is the change from 650 to 60
Calculation steps:
[( 60 - 650 ) ÷ 650] x 100 = -90.77%
Formula
Percentage change = [(60 - 650) / 650] x 100
Subtract the new number by the original number
60 - 650 = -590
-590 ÷ 650 = -0.9076923076923077
-0.9076923076923077 x 100 = -90.77%