-49.45% is the change from 995 to 503
Calculation steps:
[( 503 - 995 ) ÷ 995] x 100 = -49.45%
Formula
Percentage change = [(503 - 995) / 995] x 100
Subtract the new number by the original number
503 - 995 = -492
-492 ÷ 995 = -0.49447236180904525
-0.49447236180904525 x 100 = -49.45%