The material cost of upgrading potions is no displayed in alchemist.
For example:
At level 30, it should display the number of herbs and angel breaths are needed. It only displays the icon of the materials , not the number also.
I found out in wowhead that i need 110 herbs and 15 angelbreaths
They have a new toggle “feature” for crafting menus. The default view does not show the number of materials, but they will be shown (and how many you have available) when you press the button to toggle the quantity numbers on.
The button to toggle is shown on the UI somewhere.