-35.38% is the change from 995 to 643
Calculation steps:
[( 643 - 995 ) ÷ 995] x 100 = -35.38%
Formula
Percentage change = [(643 - 995) / 995] x 100
Subtract the new number by the original number
643 - 995 = -352
-352 ÷ 995 = -0.35376884422110555
-0.35376884422110555 x 100 = -35.38%