2013 Gauss 8 Problem 8

Mathy Manuel's autograph was once worth \$100. The autograph then dropped 30\% in value. If it then increased by 40\%, its value would be

\textbf{(A)}\ \$98\quad \textbf{(B)}\ \$48\quad \textbf{(C)}\ \$100\quad \textbf{(D)}\ \$78\quad \textbf{(E)}\ \$90

If there are no answer choices shown, enter a numerical answer.

Full credit to this problem is given to the CEMC, you may view all Gauss contests here.