Safe Home provides house-sitting for people while they are away on vacation. Some of its customers pay immediately after the job is finished. Some customers ask that the business send them a bill. As of the end of the year, Safe Home has collected $3,090 from cash-paying customers. Safe Homes remaining customers owe the business $540. Safe Home recorded $3,090 of service revenue for the year.

If Safe Home had recorded their service revenue using the other method, how much service revenue would they have recorded for the year?