A company uses installment method of accounting with the following information available: (see pic) Based on the information given, what is the cost of installment sales for the year 2019?

A Company uses installment method of accounting with the following information available: 2017 2018 2019 Installment sales 500.000 800.000 ? Cost of installment ? 600.000 ? Gross prot ? ? 232.000 Collections on: 2017 sales 50.000 250.000 100.000 2018 sales - 200.000 500.000 2019 sales - - 400.000 Realized gross prot on installment sales 11.000 ? 241.000 Based on the information given above. the cost of installment sales for the year 2019 was