I was in Daiso on the weekend and noticed they upped their prices across the board to $3.10 from the usual $2.80.
Granted; Daiso had been $2.80 since their opening; but considering that Daiso is a ¥100 (~$1.20 AUD) shop in Japan, it baffles me that they would stretch that markup even further.
Unsure if this is national or just the branch I was in (Melbourne CBD)
Shipping, customs, warehouses, logistics, staff, taxes, security, ACL coverage, advertising, shop rent, utilities, returns etc… It's not unreasonable.