if you are renting the dumpster for $200 per month and need it for one extra week, then you will only have to pay $75 total, not per day. you can make sure that you are dealing with a company like this by calling the ones in your area and asking them yourself. a quality dumpster rental company will have no problem telling you about their payment system.
you also want to make sure you find a company that will come and empty your dumpster when you need them to. you should be able to schedule a dump and have the company come pick it up the next day. if you 