a bit confusing at first because i didn't understand i had to hold left click ton check the costs, i was just single clicking the scroll and nothing really happened haha
apart from that, your game has a lot of qualities: once you understand it, the gameplay loop is simple but is becoming quite hectic with time, art is simple yet cool, i love the fact that sometimes your weights just fly away when something very heavy goes on the scale!
oh and i found the font not super readable, especially for "5" that at first made me think it was a "$"