About This File
Currently, if you have multiple different subscription frequencies that are all set to add to the price, the cheapest one is displayed on the overview in commerce, without any indication of how often you have to pay that. This means that if you have two different tiers (such as "Regular Widgets" and "Platinum Widgets"), and Regular are only available with monthly or yearly subscriptions while Platinum can be bought weekly as well, Regular looks more expensive than Platinum, because the monthly regular price is higher than the weekly platinum price.
This simple plugin solves that by calculating the lowest pro rata cost of the subscription based on an interval of your choice, and displaying that instead.
Note that this plugin only applies to products that are $0, but then have the subscription price added, and only if there is more than one subscription period available to choose from.
