If a set of numbers ~ to a particular figure or if you average them out to that figure, their average is calculated to be that figure.
There are six glasses of wine in one bottle, which averages out to 50p a glass...
Averaging it out between us there’s less than ?10 a month each to live on.
PHRASAL VERB: V P to/at n, V n P, also V P n (not pron)