-89.07% is the change from 997 to 109
Calculation steps:
[( 109 - 997 ) ÷ 997] x 100 = -89.07%
Formula
Percentage change = [(109 - 997) / 997] x 100
Subtract the new number by the original number
109 - 997 = -888
-888 ÷ 997 = -0.8906720160481444
-0.8906720160481444 x 100 = -89.07%