I'm a new Mini owner

so had a look today to see what the pressures should be on my 17" 205/45 Runflats.
The chart on the inside of my door says 2,4 or 240 but this doesn't mean anything to me

I'm used to punching in the P.S.I number at the garage. I've had a look on internet at some conversion charts and see the P.S.I. is 35. This is higher than I've ever used before but there again have never owned a
MCS or even another high performance car. Could do with some advice here please?

Is this the pressure most of you use and if not can you tell me what you use and why please?
Cheers