-89.8% is the change from 784 to 80
Calculation steps:
[( 80 - 784 ) ÷ 784] x 100 = -89.8%
Formula
Percentage change = [(80 - 784) / 784] x 100
Subtract the new number by the original number
80 - 784 = -704
-704 ÷ 784 = -0.8979591836734694
-0.8979591836734694 x 100 = -89.8%