Half win in accumulator

[ShowmLet99]

How to calculate for half win matches in accumulator ? 
I got 4 half win matches in my accumulator and i don't know if i should cashout the bet or not. I am trying to calculate how much i will win if the last match is won but I don't know how to calculate odds for the half win matches. Half win matches odds are 1.37, 1.52, 1.54 and 1.59. 
 

[astolfoox]

1.52

[MarkoDm]

So, when you have a half-win selection on your bet slip, the odds for that selection are halved, but they cannot be lower than 1. So, for example, if your original odds on a half-won selection are 1.37, they would be 1.185, for 1.52 they would be 1.26, etc...

But, if the original odds are higher, like 2.30, in that case, the new odds would be 1.65. I'll give you an example of a half-win bet, and how to calculate it.

When you place a bet on quarter lines (.25/.75), your bet gets divided into 2 separate bets, half between the nearest whole and half market lines, and the outcome of both halves of your bet determines the final settlement, which can result in a Win, Half Win, Half Loss, or Loss.

For example:

A $10 bet on the 'Over 1.75' line at x2.30 odds will be split into two separate bets, $5 is placed on the Over 1.5 line and $5 on the Over 2 line.

So, if the game ends with 1 or no goal scored, your bet is lost, for 2 goals your bet is half-won because the 'Over 1.5' line is won and 'Over 2' gets pushed/voided (according to our rules, shown on the picture below) and if 3 or more goals are scored, your bet is fully won.

If the match ends with 2 goals scored, it should be a half-win leg, as aforementioned and the odds for that leg should be x1.65 instead of x2.30 in the first place.