Professional services play a minor role for most companies, with the median company booking P.S. revenues on new deals equivalent to 16% of first year subscription contract value. Median P.S. margins are approximately 22%. These results are consistent with last year’s results.
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If your Net Revenue Churn is high (above 2% per month) it is an indicator that there is something wrong in your business; which may have a dramatically negative effect on your company’s growth. Source: Mckinsey
Because of the losses in the early days, which get bigger the more successful the company is at acquiring customers, it is much harder for management and investors to figure out whether a SaaS business is financially viable.