-81.03% is the change from 780 to 148
Calculation steps:
[( 148 - 780 ) ÷ 780] x 100 = -81.03%
Formula
Percentage change = [(148 - 780) / 780] x 100
Subtract the new number by the original number
148 - 780 = -632
-632 ÷ 780 = -0.8102564102564103
-0.8102564102564103 x 100 = -81.03%