# Math - Percent Increase

by moses
(new jersey)

Before it was 18 cough drops for \$0.50. now it is 16 for \$0.60. what is the percent increase?

### Comments for Math - Percent Increase

Average Rating

 Feb 16, 2011 Rating Math - Percent Increase by: Staff The question: by Moses (New Jersey) Before it was 18 cough drops for \$0.50. now it is 16 for \$0.60. what is the percent increase? The answer: It might be easier to think about this question if it is rewritten in three steps: What was the original cost PER COUGH DROP? What is the cost now PER COUGH DROP? What is the PERCENT INCREASE PER COUGH DROP? The original cost per cough drop: Original cost per cough drop = (original cost)/(number of cough drops in box) Original cost per cough drop = (\$.50)/(18 cough drops in the box) Original cost per cough drop = 2.78 cents per cough drop (\$0.0277777777777778 per cough drop) The current cost per cough drop: Current cost per cough drop = (current cost)/(number of cough drops in box) Current cost per cough drop = (\$.60)/(16 cough drops in the box) Current cost per cough drop = 3.75 cents per cough drop (\$0.0375 per cough drop) % Increase in cost per cough drop: % increase in cost per cough drop = 100*(Current cost per cough drop - Original cost per cough drop)/(Original cost per cough drop) % increase in cost per cough drop = 100*(3.75 cents - 2.78 cents)/(2.78 cents) % increase in cost per cough drop = 100*(.97 cents)/(2.78 cents) % increase in cost per cough drop = 34.9% The final answer is: 34.9% increase Thanks for writing. Staff www.solving-math-problems.com