-80.65% is the change from 770 to 149
Calculation steps:
[( 149 - 770 ) ÷ 770] x 100 = -80.65%
Formula
Percentage change = [(149 - 770) / 770] x 100
Subtract the new number by the original number
149 - 770 = -621
-621 ÷ 770 = -0.8064935064935065
-0.8064935064935065 x 100 = -80.65%