Doubt about storing spent cash

[nomade]

Hello people,

I would like to know if it is possible to save the amount of cash spent at the mall.
Ex:
Ygg costs 50 cash's, I buy 10 will give 500 cash's I wanted this amount to be saved and added to amounts spent in the future.

Is it possible? and how can i do?

[Start_]

Maybe just add increase variables in src when cash spend in Cash Shop windows. (Try to find a lines of code on src folders)

[Emistry]

there exists a SQL table named cashlog, maybe you could refer there ...