Comment on Microsoft: We've sold 40 million Windows 8 licenses to dateparentComments−dkhenry13yIf a month has 30 days then that's also 10% of the time period, or another way of saying it is that sales remained constant over that initial time frame.
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If a month has 30 days then that's also 10% of the time period, or another way of saying it is that sales remained constant over that initial time frame.