It all depends on perspective @Hashire-Sori-Yo .
Assuming 1 gold is worth 10 silver (I don't know if it was mentioned already). Also, rounding up the mc's cost (pg 27 "didn't even cost me 1 silver").
The MC selling 1 silver worth of stuff for 17 gold he just made got a 17000% profit. More if 1...
@zzetal AFAIK, just having a bunch of girls interested in the MC is what makes it a harem regardless of MC's interest (or lack thereof) in any/all of the harem.
After all, there's the extremely common trope of the MC being oblivious to the feelings of all the girls surrounding him and that's...