Increased working hours of workers in lean manufacturing concepts should be avoided as much as possible because it costs to workers will be even greater. Similarly, with Increase of man-hours incurred by wasteful carrying. Carrying activities should be set only 5% of overall production activity, but because too much waste then what happens is time-consuming activity of carrying up to 30%.
A company that let the state of waste take place, the land will gradually undermine the financial company. The biggest expenditure that can be felt are paying more salary workers because of the overtime hours that should not be necessary.