Can someone help me with pricing please

Me and my mum recently got a job cleaning this business after hours. We go twice a week and they’ve agreed to pay $35 AUD each time we go.

It doesn’t take too long tonight it took us a hour all up but next time will be quicker.

Total equipment we bring is a mop and vacuum and some bottles/wipes.

Total to clean is a kitchen, 3 rooms and the main area. Vacuum and mop only

How would you all go about pricing this? We don’t do this full time just an odd job but if we figure out how to price correctly I believe we can go further. As we actually do a good job.

$35 per visit split between us doesn’t cover a single thing. That’s just travel there! For reference it’s about a 20 minute drive each way.

Thanks

We are in Australia