How to calculate the breakage rate of tableware?

The damage rate of tableware is high, so we should work hard on the management of tableware. Make the whole process into SOP and implement it. The upper process is responsible for the lower process. This can reduce the breakage rate of tableware. About the process of reducing the damage of tableware, this forum has, you can take a closer look. Maybe we can find the crux of the problem there.