A cardboard box has a length of 3 feet and a height of 2 feet and depth of 2 feet If the length and depth are doubled by what percent does the volume of the box change?

A box of those dimensions would have a volume of 3 x 2 x 2 or 12 cubic feet. If the length is doubled to 6 feet, the depth is doubled to 4 feet and the height remains the same at 2 feet, the volume would then be: 6 x 4 x 2 or 48 cubic feet. The percent change of the increase would be the difference in the volumes, divided by the original volume, multiplied by 100. In this example, the percent increase is 36/12 times 100 or 300%.