Corey buys $10$ Tufflift$4-$post, $4\mathrm{.}5-$ton car hoists for his parking garage at a total cost of $ $414,000.$ He finances this with a$$ five$-$year loan at $7\mathrm{.}4\%$ APR with monthly payments. After he has made the first $20$ payments, how much is the outstanding principal balance on his$$ loan? please do with excel formula