[calgaryeng]

Just an FYI from a native english speaker - sums of money do not use the plural version of the value unit.

i.e. should be "raised $4.4 billion" not "raised $4.4 billions"

[hammeiam]

I would debate the phrasing of that answer. The value unit ($) is implicitly pluralized. Fully written out, that phrase would be "four point four billion dollars". The value unit is pluralized, but the numbers are not pluralized.