Question

Explain the need to calculate percent change in mass vs. simply change in mass (weight gain or weight loss) over time. (Short answer please)

Answer 1

Answer:

Answer: The difference in mass does not deal with the proportional aspect of the solutions, making the results less accurate. The percent was calculated to give an exact difference, along with considering the quantities of solution.

Answer 2

Calculating the percent change is more accurate when we are looking for a cross comparison between multiple sets of data.

Explanation:

• Finding the mass difference is only relevant for sets of data that started with the same mass.
• The difference in mass does not deal with the proportional aspect of the solutions making the results less accurate.
• The percent was calculated to give an exact difference along with considering the quantities of solution.
• Percentage change represents a degree of change over time.
• It is used for many purposes in finance most notably to indicate the price change of a security.
• Percentage change can be applied to any quantity that can be measured over time.