To match the prices with the correct percent of increase or decrease, we can calculate the percentage change for each pair.
-
Original price: $12.25, New price: $13.23
- Increase: \( \frac{(13.23 - 12.25)}{12.25} \times 100 \)
- Increase: \( \frac{0.98}{12.25} \approx 0.0800 \times 100 \approx 8.0% \)
- Match: 8% increase
-
Original price: $98.00, New price: $108.78
- Increase: \( \frac{(108.78 - 98.00)}{98.00} \times 100 \)
- Increase: \( \frac{10.78}{98.00} \approx 0.1091 \times 100 \approx 10.9% \)
- Match: 11% increase
-
Original price: $63.00, New price: $56.07
- Decrease: \( \frac{(63.00 - 56.07)}{63.00} \times 100 \)
- Decrease: \( \frac{6.93}{63.00} \approx 0.1095 \times 100 \approx 10.95% \)
- Match: 11% decrease
-
Original price: $37.50, New price: $34.50
- Decrease: \( \frac{(37.50 - 34.50)}{37.50} \times 100 \)
- Decrease: \( \frac{3.00}{37.50} = 0.08 \times 100 = 8.0 % \)
- Match: 8% decrease
Now, associating the pairs we have:
- $12.25 to $13.23: 8% increase
- $98.00 to $108.78: 11% increase
- $63.00 to $56.07: 11% decrease
- $37.50 to $34.50: 8% decrease
So, the pairs to fill in are:
- $12.25 to $13.23: 8% increase
- $98.00 to $108.78: 11% increase
- $63.00 to $56.07: 11% decrease
- $37.50 to $34.50: 8% decrease
Since there are not enough data points for the percentage changes of 12.4% decrease, 8.7% decrease, 7.4% increase, and 9.9% increase, they are not used in this specific pairing.
1 answer