-50.85% is the change from 995 to 489
Calculation steps:
[( 489 - 995 ) ÷ 995] x 100 = -50.85%
Formula
Percentage change = [(489 - 995) / 995] x 100
Subtract the new number by the original number
489 - 995 = -506
-506 ÷ 995 = -0.5085427135678392
-0.5085427135678392 x 100 = -50.85%