Exercise 60 Page 156

To determine the percent change p, we can use the following general formula. p % =Amount of increase or decrease/Original amountFrom the given values, we can see the original amount was 873 and the new amount is 781. This is a decrease in the amount. 873 - 781 = 92 The difference between the new amount and the original amount is 92. Now we can use the formula.

Percent change=Amount of decrease/Original amount

SubstituteII

Amount of decrease= 92, Original amount= 873

Percent change=92/873

UseCalc

Use a calculator

Percent change=0.105383...

RoundDec

Round to 2 decimal place(s)

Percent change≈ 0.11

WritePercent

Convert to percent

Percent change≈ 11 %

The percent decrease is approximately 11 %.