Upload metadata XML with price tier

I am uploading in app products into the app store by using a transporter for my app.
So I have constructed metadata XML with all mandatory fields.Here I need to pass pricing information(Price tier) for all 175 territories.

I have a US territory pricing amount. (Ex: 0.99 USD). From this how to calculate price tier value for all 175 territories.
<price>
<territory>US</territory>
<tier>2</tier>
</price>
<price>
<territory>AO</territory>
<tier>2</tier>
</price>
Someone please clarify this.
Is there some reason you're not relying on the store's native pricing?

Apple tends to frown on DIY pricing inside an app...

As well, have you considered that prices are subject to changes/conversion, and even if you succeeded, what you hardwire/show in your app may not reflect reality in the store...which is one of the main reasons Apple frowns on the practice. User don't take kindly to seeing the price change by the time they get the receipt.
Thanks,

I have In App product price amount in USD format (Ex:1.99 USD). I am not supposed to pass this amount directly via metadata XML. I have to find out the Price tier value for the given amount.
Like below,
<price>
<territory>US</territory>
<tier>2</tier>
</price>  

 Also I have to find out the equivalent price tier for non US territories. 
<price>
<territory>DZ</territory>
<tier>?</tier>
</price>
<price>
<territory>AO</territory>
<tier>?</tier>
</price>
.
.
.
Is the any API to find out price tier value for all territories based on given currency(Ex : 1.99 USD)?
Please clarify on this
Upload metadata XML with price tier
 
 
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