What is the actual G bonus on a 150-point P-class segment? I know it won't be 37,5

cheers,

Henry

You will get 195 points... (Don't ask me why this number... 190 would have made sense, haven't at all understood the extra 5?!) I have quite a few of those ones... Welcome to the "saving money club"!

It's 195 points in total, so there is an extra round-off bonus of 7.5 points...

SAS, we give you 7,5 bonus frequent flyer miles whats that in percentage: anyone bored in a lounge or flight can calculate that

So what's the EBG bonus for 75 point flights (i.e. Danish domestic)?

I got last week 1505 points for a flex flight CPH-MUC. I have no clue where the 5 points came from, as I got 1500 points for the corresponding MUC-CPH a week before.

Was by any chance one of them coded as SK (1505) and the other one as LH (1500) on the original tickets? Both of course operated by SK and also printed as SK flights in the EB-statements... This has happened to me a few times on flights from HAM.

The strange roundings are often occurring when travelling on a fare that gives 50% bonus and you also need to be EBS or EBG.

If you take 1.50 * 1.25 you get 1.875 but probably SK underlynig system cannot handle 3 decimals in which case it gets rounded to 1.88

1.88 * 800 = 1504 which would be rounded to 1505.

I also have had on flight in 25% ARN-CDG: 0.25*1.25 = 0.3125 which woould be 0.32 according to the above idea. 0.32*1800=576 and I got 580 points so it adds up.


ARN-BRU in Y is 1200*1.88 = 2256, rounded to 2260 which is what I get on my account.

ARN-CPH in Y is 600*1.88 = 1128, rounded to 1130 which is what I get.

I have no experience from EBS, but the problem does not happen when I travel on 100% or 200% fares...

Why I get something else when it is booked on LH flight number is more than I know and understand!

Just for the record: I have only once travelled on a 25% fare and that would give 0.25*1.25 = 0.3125 which would give 0.32. 1800*0.32 = 576 points whihc rounded gives me 580 points. So that adds up.

Yes! You are correct.

So the mathematician then assumes that in SK system multiplication is not properly associative. That is that (a * b) * c is not a * (b * c). Essentially it may be that they multiply together your bonus before they multiply it with the basic point value for the segment.

Now; for LH it might simply be that it is a different piece of code that calculates points from SK vs. points from partners.

Yes, that has to be the reason. They use decimal fixed point arithmetic with only two decimal digits. Probably some nasty old COBOL program.

According to this theory EBG should get 100 points on a discounted Danish domestic flight: 0.32 * 300 = 96 which is rounded up to 100.