When I started at a firm (a number of years ago) I was going over the pay structure with my new manager. When it came time to go over the annual bonus, he said that for the first year, my bonus would be prorated for the time that I worked.
I countered that it wouldn't be. To be clear, we both agreed I'd get the same amount of money. If I started halfway through the year, I'd get a bonus equal to half of what I would have for the whole year.
I merely disagreed about the use of the term prorated. I argued that my bonus wasn't prorated, merely that I only earned half as much. I still would receive a full bonus since, by definition, the bonus is simply your amount earned times a multiplier.
So to be clear, we can all agree that if a bonus was a flat amount that certainly it would. But when referring to bonuses that are a percentage of gross wages (including all the little things like on-call pay, overtime/emergency pay, etc...) is it still appropriate to call that prorated? If not, is there another word to describe that?