Questions: The "communication revolution" has given us prepaid phone calling cards. These cards are used to make long-distance phone calls from any phone. In a recent year the industry posted sales of 200,000. Three years later the sales figure had risen to 150,000,000. What is the increase in sales over the three-year period? The increase in sales is s

The "communication revolution" has given us prepaid phone calling cards. These cards are used to make long-distance phone calls from any phone. In a recent year the industry posted sales of 200,000. Three years later the sales figure had risen to 150,000,000. What is the increase in sales over the three-year period?

The increase in sales is s

Transcript text: The "communication revolution" has given us prepaid phone calling cards. These cards are used to make long-distance phone calls from any phone. In a recent year the industry posted saies of $\$ 200,000$. Three years later the sales figure had risen to $\$ 150,000,000$. What is the increase in sales over the three-year period? The increase in sales is $s$ $\square$

Solution

Solution Steps

Step 1: Identify the initial and final sales figures

The initial sales figure is $\$200,000$, and the final sales figure after three years is $\$150,000,000$.

Step 2: Calculate the increase in sales

To find the increase in sales, subtract the initial sales figure from the final sales figure: \[ \text{Increase in sales} = \$150,000,000 - \$200,000 \]

Step 3: Perform the subtraction

\[ \text{Increase in sales} = \$150,000,000 - \$200,000 = \$149,800,000 \]

The increase in sales over the three-year period is $\$149,800,000$.