To get any answer you would have to tell where you would want to rent that car. Moreover, different rental companies can have different packages (such as one day, or 7 days for the price of 6 days), and of course different prices for different cars, so for the best price you have to take all those factors into account.
To keep it simple: you say you know that first company now is more expensive than some other. So you already know a cheaper one. Why not use that? Or search a little bit more yourself?
I rented a car which was really cheap at the time but now their prices are not competitive anymore so I'm looking for an alternative car rental company.