the price of an item has risen to 221 today, yesterday is was 130. Find the percentage increase.

Answer 1

To calculate the percentage increase, you can use the following formula:

\[ \text{Percentage Increase} = \left( \frac{\text{New Price} - \text{Old Price}}{\text{Old Price}} \right) \times 100 \]

Given:

• New Price = 221
• Old Price = 130

Now, plug in the values:

\[ \text{Percentage Increase} = \left( \frac{221 - 130}{130} \right) \times 100 \]

\[ = \left( \frac{91}{130} \right) \times 100 \]

\[ = 0.7 \times 100 \]

\[ = 70% \]

The percentage increase in the price of the item is 70%.