Last​ year, the owner of the Fixum Auto Repair Shop paid a premium of ​$9.92 per​ $100 of gross wages for​ workmen's compensation insurance. This year his premium will increase by 5 %. If he has 8 employees averaging ​$21 per​ hour, 40 hours per week for 50​ weeks, what will be his total premium for this​ year