What is the name of this term?

Being paid on commission?

incentive pay?

That’s a little too vague to say for sure.

Like @janbb said, it could be commission. Commission is a percentage of your sales: so, big sales, big pay; low sales, low pay.

It could be incentive pay. It could be a simple raise. It could be some kind of graduated pay.

Could you provide more of the quotation/context?

Bonus. Or just sales.

Sales is about the more you sell the more you make.

positive slope? There is an algebraic term for this, I just can’t think of it
maybe positive association, or positive correlation.
Yes, after Googling it, I think it is positive correlation

I would call that a proportional relationship. It uses one of my favorite math symbols, which i don’t know how to put into this window but looks like an infinity symbol with the right side open.

Others have given good answers… I thought of “getting paid by commission,” “sales and pay are positively correlated,” “sales and pay are directly proportional.”

Could be commission. Could be performance-indexed pay. Could be incentive pay. The company I work for uses incentive pay, not direct commission. There are targets to meet and pay rises according to what % above-target you reach each month.

Do you mean that your pay increases commensurately with your sales?

This is a ‘direct relationship’, as opposed to an inverse relationship, which would be “when your pay decreases as your sales increase” or “when your pay increases as your sales decrease”.

Performance-based compensation