How to run a promotion in the Android Market

Does anyone know how to run a promotional price in the Android Market?

I swear I have seen apps on the market wit开发者_如何学编程h a prices slashed through with a temporary price (like 33% off, etc).

Am I crazy and there is no way to do this or what? I can't seem to figure it out.

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You can lower the price of your app in the Android Market to promote it, but there is currently no way to display it with the old price slashed through.

You probably saw the slashed through prices on other market sites (eg http://www.appbrain.com), which monitor the market and show a changelog for each app. (including old prices)

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You can edit the app's properties through the developer console, which includes the pricing