Has the company's ability to pay its debts improved or weakened over the year?

Instructions
(a) Calculate Danier Leather's current assets and current liabilities for each period.
(b) Calculate Danier Leather's working capital, current ratio, and acid-test ratio for each period. 

(c) What does each of the measures calculated in part (b) show? Comment on Danier's liquidity.
Taking it Further:
Why do you believe there is such a difference between the current and acid-test rations? Is this normal?

June 28, 2014 June 29, 2013 June 30, 2012 S13,507 638 21,721 3,461 643 16,826 3,833 9,185 1,511 94 1,432 48,407 34,332 517 24,891 426 $24,41 Accounts receivable Inventories Income tax recoverable Prepaid expenses Property and equipmert Other long-term assets Payables and accruals Deferred revenue Other current liabilities Non-current liabilities Shareholders' equity 1,197 22,810 358 803 16,034 3,306 10,101 1,548 150,124 2,635 10,161 1,463 124 1,373 65,491 1,392 55,909