-89.88% is the change from 781 to 79
Calculation steps:
[( 79 - 781 ) ÷ 781] x 100 = -89.88%
Formula
Percentage change = [(79 - 781) / 781] x 100
Subtract the new number by the original number
79 - 781 = -702
-702 ÷ 781 = -0.8988476312419974
-0.8988476312419974 x 100 = -89.88%