-36.22% is the change from 798 to 509
Calculation steps:
[( 509 - 798 ) ÷ 798] x 100 = -36.22%
Formula
Percentage change = [(509 - 798) / 798] x 100
Subtract the new number by the original number
509 - 798 = -289
-289 ÷ 798 = -0.36215538847117795
-0.36215538847117795 x 100 = -36.22%