Current ratio, quick ratio (acid test), and cash ratio with industry benchmarks. The first numbers any lender or acquirer will check.
Inventory can't always be liquidated quickly at full value. The quick ratio strips it out — leaving only cash and receivables. Lenders and acquirers focus on quick ratio for this reason. A current ratio of 2.0 with a quick ratio of 0.4 is a red flag: the business is liquid on paper but inventory-dependent in practice.