The MC asked for 10M gils, the CEO girl gave him five coins, to which the MC asked why she's paying him too much. Previously we learned 1 platinum coin is probably worth 1M gils, so five coins would be 5M, which is only half of what he asked for. Apart from using the infantile "gil" for the sake of the average Japanese reader who can't understand anything but yen, I don't think the author even remembers his own currencies and monies, as soon as he introduced a new coin because you'd need a truck to move millions of gils around. Well, I guess the author needs to work at least this hard to make this a shining example of trash isekai.