Large amounts don't add up

[zufanka]

I don't understand why all awarded amounts are a negative number.
And the awarded amount does also not add up.
It appears so in some cases (would it be because we are calculating bilions here?)

But not in others:

https://defence.tenders.exposed/network/5eb7c194-9f7c-426b-b670-6b8cab70f14a/bidders/95b407a2-9b0d-4a7d-bdb8-072848909dde