-97.99% is the change from 995 to 20
Calculation steps:
[( 20 - 995 ) ÷ 995] x 100 = -97.99%
Formula
Percentage change = [(20 - 995) / 995] x 100
Subtract the new number by the original number
20 - 995 = -975
-975 ÷ 995 = -0.9798994974874372
-0.9798994974874372 x 100 = -97.99%