-84.42% is the change from 995 to 155
Calculation steps:
[( 155 - 995 ) ÷ 995] x 100 = -84.42%
Formula
Percentage change = [(155 - 995) / 995] x 100
Subtract the new number by the original number
155 - 995 = -840
-840 ÷ 995 = -0.8442211055276382
-0.8442211055276382 x 100 = -84.42%