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Hello ldd6602707,
Based on the information you provided, added up with my assumption,
Here are two options for you, all with the same cost.
You may choose whichever you want.
Option 1:
2 sets of 1 cards
1 set of 2 cards
Option 2:
If you really want to make sure you get enough,
you may need the following,
1 set of 1 card
1 set of 2 card
1 set of 5 card
Cost:
8.8 X 3 = 26.40
Relevant assumption:
5-star growth/week: 1
Reward rate: 2%
+ Tear % 3%
+ Risk buffer % 15%
1_cent_reward 60%
2_cent_reward 40%
The last but not the least,
student has to exchange their credit with you whenever it reaches 30.
This will reduce the card you need.
I have attached the model below.
You can make whatever adjustment to it according to your will.
I hope it works.
Thanks.
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