The logic does not work in prices when creating multiple price breaks and having a minimum quantity.
Screen shot attached showing the setting on the admin page. If the first price break has minimum quantity set that is not equal to 0, all prices in the price breaks are ignored and the product is treated as free as shown in the second screen shot.
If the minimum quantity is set to 0 in the first price break you this, also shown on the thrid screen shot.
$36.00 each
$27.00 per unit for buying at least 100
$26.00 per unit for buying at least 250
$25.00 per unit for buying at least 500
I should be able to the the minimum quantity on the first price break to 50, and have this display, not have the product show as FREE???
$36.00 per unit for buying at least 50
$27.00 per unit for buying at least 100
$26.00 per unit for buying at least 250
$25.00 per unit for buying at least 500
Also note, that setting the first price break to anything but 0 also removed all prices display from all admin screens as the other prices are ignored and product is considered free.