1)the price of a certain brand of coffee goes from $8 a bag to $10 a bag.
what is the percent of change in the price?
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is the percent of change a percent of increase or a percent of decrease? explain.

2) lamar is choosing between two boxes for shipping. box 1 is 250 cubic inches. box 2 is 4,000 cubic centimeters. (use 1 inch = 2.54 centimeters.)
which box is larger?
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by how much is it larger?