Question

Identify as an increase or decrease. Then find the percent of increase or decrease. If necessary, round to the nearest percent. Original: 170 New: 90 %________

Answer 1

the percent decrease is approximately 47 %

Explanation:

Since the quantity started at 170 and then changed to 90, there was clearly a decrease in its value.

We use the following formula to calculate the percent of decrease:

`\%\,decrease = (original-final)/(original) \,100\\\%\,decrease = (170-90)/(170) \,100\\\%\,decrease = (80)/(170) \,100\\\%\,decrease \approx 47\,\%`