-49.05% is the change from 995 to 507
Calculation steps:
[( 507 - 995 ) ÷ 995] x 100 = -49.05%
Formula
Percentage change = [(507 - 995) / 995] x 100
Subtract the new number by the original number
507 - 995 = -488
-488 ÷ 995 = -0.4904522613065327
-0.4904522613065327 x 100 = -49.05%