ABC Corp. is currently evaluating its accounts receivable management strategy. The company has an average collection period of 45 days, and its credit sales stand at $1,800,000 annually. Recently, the finance team suggested changing the credit terms from net 30 to net 60 to encourage more customers to purchase on credit. They anticipate that this change could increase sales by 10%. However, management wants to know how this adjustment affects liquidity, considering the potential increase in the average collection period and its implications on cash flow.

With the proposed change, what impact would a net 60 credit period have on the average collection period and the company's liquidity if the current average accounts receivable balance is $220,000?