2. On a purchase of $120, a store offered a payment plan consisting of a $20 down payment and 12 monthly payments of $10 each. What percent of the purchase price, to the nearest tenth of a percent, did the customer pay in interest by using this plan?
(A) 16.7%
(B) 30%
(C) 75.8%
(D) 106.7%
(E) 107.5%
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