Ive gotten the answer as 14% but that doesnt seem to be correct

QUESTION 3 Mama Winston's Bakery has purchased a small car for delivering baked goods. The car was purchased for $28,000 and will have a 6-year useful life and a $2,500 salvage value. Delivering baked goods (which the bakery has never done before) should increase gross sales by at least $32,000 per year. The cost of the baked goods will be about $25,000 per year. The internal rate of return for the car is closest to (State answer as a percentage)