-91.78% is the change from 973 to 80
Calculation steps:
[( 80 - 973 ) ÷ 973] x 100 = -91.78%
Formula
Percentage change = [(80 - 973) / 973] x 100
Subtract the new number by the original number
80 - 973 = -893
-893 ÷ 973 = -0.9177800616649537
-0.9177800616649537 x 100 = -91.78%