An accountant at Lightning Wholesale needs to summarize the GST remittances, costs of goods sold, and sales for 2013 by quarter. The table below presents the purchases (in USD) that it made from its American supplier, average monthly supplier cash discounts, total monthly sales (in CAD), and the average monthly exchange rate appreciation or depreciation. THE DATA 2013 Purchases Average 2013 CAD Appreciation (+) or Quarter Month in USD Cash Sales in Depreciation Before Discount CAD Discounts (-) Against USD January $2,021 2.00% $1,798 Start 0.9423 February $2,200 3.00% $2,407 1.00% March $2,531 2.50% $2,568 -0.50% 11 April $2,623 1.50% $2,985 0.35% May $2,676 1.00% $3,114 -1.50% June III July IV $2,805 2.00% $3,242 1.75% $3,309 2.25% $3,306 1.00% August $4,146 2.00% $3,852 0.05% September $6,196 3.00% October $10,981 3.00% November $8,332 3.25% December $1,520 1.75% (all figures are in thousands of dollars) $4,815 -1.40% $7,222 -0.30% $12,839 0.90% $9,6308 -0.75% IMPORTANT INFORMATION . The imported products require GST to be paid on the equivalent Canadian value of the imported goods before any discounts. All sales are subject to GST. Lightning Wholesale's suppliers offer it various cash discounts, which the accounting department always takes advantage of. These discounts have not been deducted from the purchase amounts listed in the table.