A pack of 100 pieces (+-3 pieces of error), please calculate carefully to avoid any unnecessary trouble.

Note: There are two types of bag edges. One type has flat edges, called flat edges, with width errors of about 1-2 millimeters, so please accept the error before purchasing. The other type has teeth on the edges, called flower edges, which are less likely to tear or damage. Therefore, the actual width of the flower edge should be reduced by about 0.5 cm (for example, the actual width of a 13*15 bag is reduced by 0.5 cm to 12.5 cm). Please calculate carefully!