Impressive hours there, but not impressive earnings for you hard work. You deserve alot more for those hours.
Your hours average over 10 HOURS A DAY, 7 DAYS A WEEK! to earn that. Add on other time for having a break, tiredness. Time out on the road could well be 80+ hours. This is not sustainable at all for most people for many reasons.
. . . And these figures are NOT your earnings.
Most people rent a car at around £200. To work that many hours on the road (70 hours+) will cost well over £100 diesel.
Other costs add up to over £20 per week.
Take the above costs off. You will then have your earnings. Oh, and tax and national insurance to come out of your own pocket.
Doing those long hours is dangerous to you and your customers. Also it is damaging to physical and mental health and wellbeing. The amount of Uber cars/private hire cars involved in accidents due to tiredness is a big problem for the trade.
Are these the figures from when you worked in Manchester?