This will depend on what you rent. Is it a hedge trimmer, aerater, ztr???? :confused
I rent an aerater for $48.00 a day. Line up as many jobs as you can prior to renting the machine so the first and possibly by the second lawn the unit is paid for then the rest is in the bank.
Just completed 25 aerations in 1-1/2 days. The unit was paid for by my first job, the rest was like I said in the bank.
Thats my .02