The following is with reference to stores where downloads are sold.
You can set the wholesale price of your music during the upload process while you are creating your release. When you select Amazon stores for distribution, you’ll have the option to pick a wholesale price. These prices cannot be changed once they are set.
For iTunes, your music will be automatically priced according to the following formulas:
Total number of songs x $0.99 USD = price of album
Each track is automatically priced at $0.99
You can change the price of your music on iTunes AFTER you've distributed your music. When you change the price, it affects all iTunes Stores Worldwide. iTunes has its own exchange rate, exchanged from USD. Click Here to Change the Price of Your Release on iTunes
Album price changes can take 1-3 business days. Track-level price changes are updated every Friday within iTunes’ system. All track pricing requests need to be submitted no later than the Tuesday prior to the Friday you wish the change to take effect.