UNUI the book. BASIC PROBLEMS 1 Johnston Distributing Inc. files quarterly GST returns. The purchases on which GST and the sales on which it collected the GST forth s. The purchases on which it paid the last four quarters were as follows: Quarter Purchases (S) Sales (5) 506,476 751,841 167,679 627,374 823,268 1,231,916 829,804 994,622 Calculate the GST remittance or refund due for each quarter. 2. Sawchuk's Home and Garden Ca m UNUI the book. BASIC PROBLEMS 1 Johnston Distributing Inc. files quarterly GST returns. The purchases on which GST and the sales on which it collected the GST forth s. The purchases on which it paid the last four quarters were as follows: Quarter Purchases (S) Sales (5) 506,476 751,841 167,679 627,374 823,268 1,231,916 829,804 994,622 Calculate the GST remittance or refund due for each quarter. 2. Sawchuk's Home and Garden Ca m