is it independent or dependent:

The contract states that every day past the agreed upon completion date the project is not finished, the price is reduced by $25. Also state the rate of change?

Well, it seems like the price reduction is dependent on the number of days past the completion date. The more days that go by, the more the price gets reduced. So, it's a classic case of dependency, like when you can't resist having just one more cookie and end up losing 25 bucks! As for the rate of change, it's a smooth $25 decrease for each day beyond the deadline. It's like watching your bank account draining as time goes by. Exciting stuff!