Please explain why the unit on both graphs are different, intuitively please, thanks

33:0 \"no a:=\\w FIGURE 11.5 The Marginal, Average Total, Average Variable and Average Fixed Cost Curves Fixed costs do not depend on Q and so the AFC curve decreases with Q. The AVC curve decreases with Q when there are increasing rectangular hyperbola. As output shrinks toward zero, AFC grows without bounds, and it falls ever closer to zero as output increases. Note that the units on the vertical axis of the AFC curve are euros per unit (/unit) of output, and that the vertical axis of the F C curve, by contrast, is measured in euros per hour(/hr)