Just to throw another anecdote into the pile, a SaaS company I co-founded about a decade ago has about 50 customers with an average ARR per customer of $20k, billed/paid quarterly, with the average customer on a 2 year contract. So each month they typically are billing ~12 customers, who will write a check within 30 days. Receivables 30 days past due are essentially $0 going back for years. Each quarter typically there are 6 contracts up for renewal.

As of March 1 they had maybe $20k of accounts receivable and had renewed 4 contracts YTD, and signed 4 new ones. Not a single customer paid in March. 90% of customers did not pay in April. By May 1 they were looking at about $160k in accounts receivable, and had not closed or renewed a single deal in the last two months. Business had essentially flatlined.

Of course they didn't turn anyone off, because the marginal cost of keeping a customer live is basically zero, and these weren't businesses that were bankrupt, just everyone managing the heck out of their cashflow.

Fast forward to today and 80% of those customers have paid or at least started paying. They closed their first new contract since February two weeks ago, and have made a couple renewals.

Without PPP the company would probably not exist today. I think they got just under $100k in funds. Management is paid almost entirely through distributions, of which there will be none this year. Overall rough guess is that they'll have gone from a +30% trajectory to -30% YoY for 2020.