Thanks guys. So I got the idea to format the formula I have in the custom state to add 2 decimals and convert it to a number as in the pic.
I am using the value stored in that custom state in the picture in the stripejs plugin for payments.

I have to mention that custom state field type was set as number.
However, when I do a test transaction, 36 JPY is not 36.00 JPY but 3,600 JPY

What am I doing wrong? :exploding_head: