How much does renting cards make?

Premise:
I only rent the cards I don't use,
I hold 3 good decks (water, fire, death), and I rent the remaining cards.

Here are the numbers of my rented cards,
let's see what is the return in relation to the invested capital,
which in my case is around $ 500

0.19 cents per day make about $ 69 a year,
that's to say a return of approximately 13% per year,
only from the rentals of the cards I do not use

Not bad i would say!

What is your strategy regarding rentals?

Long live the Splinterlands

Stan