-50.38% is the change from 798 to 396
Calculation steps:
[( 396 - 798 ) ÷ 798] x 100 = -50.38%
Formula
Percentage change = [(396 - 798) / 798] x 100
Subtract the new number by the original number
396 - 798 = -402
-402 ÷ 798 = -0.5037593984962406
-0.5037593984962406 x 100 = -50.38%