Hi Bod68,
The idea is that you can make as much as you like as long as you measure the same out for each, so 3 teaspoon's or 3 tablespoons of each it doesn't matter. I would make a larger batch so that you have enough for a few curry's as you will use it quite often.
It looks like this one is equal measurements of:
cumin,
coriander,
turmeric,
curry powder