# Texas Instruments introduced the first calculator that sold for $149. Now, it sells for$5. How do you find the percent of decrease?

decrease = 149 - 5 = $144 To express the decrease as a percentage decrease. Write the decrease (144) as a fraction of the original cost (149) and multiply by 100. %decrease $= \frac{144}{149} \times \frac{100}{1} = \frac{144 \times 100}{149} = 96.64\$