Question

What is the approximate percent change in a temperature that went down from 120 degrees to 100 degrees?
(1.)The percent change is approximately 17%.
(2.)The percent change is approximately 20%.
(3.)The percent change is approximately 80%.
(4.)The percent change is approximately 120%.

Answer 1

% change in temperature =
(final temperature - initial temperature) / (initial temperature) * 100%

try to apply this formula to the problem and see what you get