-81% is the change from 779 to 148
Calculation steps:
[( 148 - 779 ) ÷ 779] x 100 = -81%
Formula
Percentage change = [(148 - 779) / 779] x 100
Subtract the new number by the original number
148 - 779 = -631
-631 ÷ 779 = -0.810012836970475
-0.810012836970475 x 100 = -81%