-81.2% is the change from 798 to 150
Calculation steps:
[( 150 - 798 ) ÷ 798] x 100 = -81.2%
Formula
Percentage change = [(150 - 798) / 798] x 100
Subtract the new number by the original number
150 - 798 = -648
-648 ÷ 798 = -0.8120300751879699
-0.8120300751879699 x 100 = -81.2%