-33.67% is the change from 995 to 660
Calculation steps:
[( 660 - 995 ) ÷ 995] x 100 = -33.67%
Formula
Percentage change = [(660 - 995) / 995] x 100
Subtract the new number by the original number
660 - 995 = -335
-335 ÷ 995 = -0.33668341708542715
-0.33668341708542715 x 100 = -33.67%