Columbus Company provides the following ABC costing​ information: Activities Total Costs Activity dash cost drivers Labor $ 480 comma 000 10 comma 000 hours Gas $ 32 comma 000 4 comma 000 gallons Invoices $ 110 comma 000 5 comma 500 invoices Total costs $ 622 comma 000 The above activities used by their three departments​ are: Lawn Department Bush Department Plowing Department Labor 3 comma 000 hours 1 comma 200 hours 5 comma 800 hours Gas 1 comma 700 gallons 900 gallons 1 comma 400 gallons Invoices 1 comma 500 invoices 400 invoices 3 comma 600 invoices If labor hours are used to allocate the nonminus​labor, overhead​ costs, what is the overhead allocation​ rate