Yeah you're over thinking this.if someone stole $100 out of my cash register (probably represents a previously made purchase). If if were to cash out at the time... and then purchased $70 worth of merchandise and I gave them $30 back... my cash register would be off by $200...
However with all factors considered... I think it’s overall a $100 loss..because he got back what someone else paid but ultimately loss the $70 and $30.. any other factors are not present so can’t be considered, imo.
Just look at it in terms of what's been taken and given back.
Thief walks out the store the first time with $100 in cash. ($100 loss)
Thief goes back, hands $100 in cash back to the owner. (Loss = $0 at this point)
Thief then walks out a second time but with $30 in cash, and $70 in goods. ($100 total loss now)
That's it.




Complicated for no reason. That’s why calculators, google and math apps exist. I don’t have time for these complications

