Strange indeed DB. How could the groups cash position, as...

Strange indeed DB. How could the groups cash position, as announced in the 4E, be $7.3m as at the 31st june/20 when BD1 had a cash holding of $7.3m at the end of the same period?
As at the 31/03/20 SDX had $5.682m in cash which would have seen them funded for 6 qrts going by their last 4C.

As a rough guesstimate if we divide those 6 qrts into the $5.682m it will = $947,000 per qrt and $315,666 per month.
$5.682m -$947,000 for the June Qrt = $4.735m cash remaining, excluding any inflows as they are minimal.

The acquisition was completed on the 28th july/20 and so we need to account for another mth of operations which is roughly $315,666.
$4.735m - $315,666 = $4.42m as at the 28/07/20.

Not accounting for BD1 operational costs for july/august/20 the total cash for the 2 entity's should be in the $11.7m range. Somethings seems a miss here, not finger pointing, it just doesn't add up. I may be right of track, happy to be corrected.