Learn Danish: Han vil angive beløbet hvorefter vi får godkendelsen. - He will state the amount, after which we will get the approval.

Hvorefter is a formal relative adverb made by combining hvor (where) and efter (after). In Danish, we use these combinations to mean 'after which' or 'upon which'. It takes the whole first action (him stating the amount) and connects it to the next action, working similarly to saying 'and after that' (og derefter).

Why don't we invert the verb and subject after hvorefter? Shouldn't it be hvorefter får vi?

That is a very common trap! If you used a normal time adverb like derefter (afterwards), you would invert the verb and subject: derefter får vi godkendelsen. However, hvorefter acts as a relative word that introduces a subordinate clause. Because of this, it follows standard subordinate word order where the subject comes immediately after the conjunction: hvorefter vi får.

Does angive always mean to state or indicate? I thought it meant to turn someone in to the police.

You are right that angive can mean to betray or report someone to the authorities. However, in business or formal contexts like this one, angive simply means to 'state', 'specify', or 'indicate' information, such as an amount or a value.

Just to review, why do beløbet and godkendelsen have different endings for 'the'?