Stony Mountain Ltd. operates hunting outfitter shops throughout Canada. Excerpts from Stony Mountain's financial statements are provided below: STONY MOUNTAIN LTD. Balance Sheet (partial) December 31 Current assets Cash Short-term investments Accounts receivable Inventory Prepaid expenses Total current assets Total current liabilities Additional information: Net credit sales Cost of goods sold Instructions: 2021 2020 2019 795,000 91,000 60,000 55,000 60,000 40,000 676,000 586,000 496,000 898,000 525,000 575,000 41,000 52,000 29,000 2,465,000 1,314,000 1,200,000 1,890,000 825,000 750,000 2021 8,258,000 2020 3,940,000 5,328,000 2,650,000 a. Calculate the following ratios for 2021 and 2020: (i) Current ratio (ii) Acid-test ratio (iii) Collection period (iv) Days sales in inventory b. Indicate whether each of the ratios calculated in part a. is better or worse in 2021.