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Jarvie loves to bike. In fact, he has always turned down better$-$paying jobs to work in bicycle shops where he gets an

employee discount. At Jarvie's current shop, Bad Dog Cycles, each employee is allowed to purchase four bicycles a year

at a discount. Bad Dog has an average gross profit percentage on bicycles of $25$ percent. During the current year, Jarvie

bought the following bikes:

a$.$ What amount is Jarvie required to include in taxable income from these purchases?