Recall the Application About the Government of Mexico City Repainting

Multiple Choice

Recall the Application about the government of Mexico City repainting highway lane lines to transform a 4-lane highway into a 6-lane highway to answer the following question(s) .
-If a variable decreases from 100 to 60,then using the initial value approach its percentage decline is

A) -40 percent.
B) 40 percent.
C) 50 percent.
D) 160 percent.