Maths to figure (with exact examples of money data my income) what exactly this would be?

Dear community fourm - last month I wrote my mother an e-mail message:

'where I was basically writing explaining - that trading 212 is the best main account I wanted to use at that time for interest in the UK.

The 1 trading UK bank account I have is just a saver investor type of account , not for getting cash with out of ATMs or making card payments.

But I also had a type of 2nd bank account for general use, spending (which I get paid into with, with my job.

'I will get paid a wage of say maybe every 4 weeks 500 pounds (sterling’s)

I wrote my mother an type of email - where I basically did the maths (of working out an approximate general number for how much I spend on food).

To try to keep as little money as possible in the 2nd bank account (and make sure im able to put as most as possible in the trading 212 account (without the 2nd bank account having 0£ in the bank - or accidentally going into debt.

’ since I tried the first time 'giving a standing payment automatic each month (into the trading 212.

I ended up in the email could quote:

"put

565£" as a good amount I thought was - put as a standing order

“or to try to summarize more simply the writing above.

-TITLE less then 200 characters was looking to try to transfer (using standing order automatic to save time ) as much money as possible into my (trading) 212 saver account.

-Could users help me do the maths to figure (with exact examples of money data my income) what exactly this would be?

I could paste out the quote - with # comments of the original maths.

“"Average 634£ #example of last wage slip.

Job payment

The food last receipt 17.23 x 4 # example of a supermarket grocery shop once a week.

69£ #the monthly amount but this is not accurate?

634- 69 = 565£ (and that was the amount I put in the standing order.

As of writing this now I see in the 1st account I have 1,065 £ - Jitka my mother wrote - probably best I just try not get lower in 500£ for this account for general use.

‘so in theory it would be better for myself to increase the value /amount of the standing order- but by how much?

But wanted to write this- to try to see if I could get a better amount ’