Simon and Simone are going to the CIBC to discuss a potential mortgage. Based on the following information, calculate the Total De bt Service (TDS) ratio. Simons gross annual salary is $75,250, while Simones is $96,950. The property they are looking to purchase would result in monthly heating costs of $220, condo fees of $2,250 per year, while their annual property taxes would be $2,112. Simons only debt is a car loan of $235 per month, while Simone has a student loan of $80 per month. Calculate the TDS ratio using a monthly mortgage payment of $2,490.