-80% is the change from 995 to 199
Calculation steps:
[( 199 - 995 ) ÷ 995] x 100 = -80%
Formula
Percentage change = [(199 - 995) / 995] x 100
Subtract the new number by the original number
199 - 995 = -796
-796 ÷ 995 = -0.8
-0.8 x 100 = -80%
Example