Stall

i now happy because bought stall...
but im dont know 100% how work, i put item and set cost - but is immposible for remove? (safe remove)? i must buy and pay tax ? or i dont know how work ?
who can tell about mechanic ? how i can saw recent pay ?
but im dont know 100% how work, i put item and set cost - but is immposible for remove? (safe remove)? i must buy and pay tax ? or i dont know how work ?

who can tell about mechanic ? how i can saw recent pay ?