-81.13% is the change from 779 to 147
Calculation steps:
[( 147 - 779 ) ÷ 779] x 100 = -81.13%
Formula
Percentage change = [(147 - 779) / 779] x 100
Subtract the new number by the original number
147 - 779 = -632
-632 ÷ 779 = -0.8112965340179717
-0.8112965340179717 x 100 = -81.13%