1 A single cost half the price of a one bedroom on a monthly basis, while on a daily basis a one bedroom is 45% more expensive than a single, or if you like, a single is 45% cheaper than a one bedroom. Put it in parallel form to make it clearer: "On a monthly basis, a single room cost s half the price of a one bedroom. On a daily basis, a single room is 45% cheaper than a one bedroom.
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