I had a sale for 7 credits ( M size ) and I got 1.73 dollars for it. Then had a sale for 8 credits ( L size ) and only got 1.54 dollars. How is it possible to get less money if the picture was bigger and more expensive? ![Huh ???](https://www.microstockgroup.com/Smileys/default/huh.gif)
a) Credit Values depend upon the price the customer paid, so when he/she bought a bigger package, the price per credit will be lower.
b) Your commission varies by image level, from 25% for Level 0 and 1 to 45% for level 5.