And now you know the value of a dollar
And girl I make enough of it to spend

from The Weeknd – Professional Lyrics on Rap Genius

Meaning

The previous lines describe how the girl was relying on other’s for financial support — a gold digger:

Depending on somebody’s else wealth.

Now, as a stripper, she has her own profession and she is earning her own income.

The Weeknd has a high income and is willing to spend it on her.

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