-80.69% is the change from 777 to 150
Calculation steps:
[( 150 - 777 ) ÷ 777] x 100 = -80.69%
Formula
Percentage change = [(150 - 777) / 777] x 100
Subtract the new number by the original number
150 - 777 = -627
-627 ÷ 777 = -0.806949806949807
-0.806949806949807 x 100 = -80.69%