Final answer:
To determine the percent increase in an amount paid from one period to another, subtract the initial amount from the new amount, divide by the initial amount, and multiply by 100. Examples include pay raises and the calculation of inflation rates.
Step-by-step explanation:
To calculate the percent increase in the amount paid from one period to the next, you would take the difference in the amounts between the two periods and divide it by the original amount. Then, multiply the result by 100 to convert it to a percentage. Here we have a worker's pay raise as an example. If a job pays $10 per hour and the worker receives a $2 raise per hour, the percentage increase is calculated by dividing $2 by $10, resulting in 0.20, which is then multiplied by 100 to get a 20% raise.
Another example is the calculation of inflation rates. If the total cost of a basket of goods rises from $100 to $106.50, the percentage change or the inflation rate would be (($106.50 - $100) / $100) * 100, which equals 6.5%.
In the context of the provided question, if the chosen correct answer is 2.6%, then the percent increase calculation would follow a similar method. The specific numbers related to the amount paid in 2010 and 2011 are not provided, but the principle of the calculation would remain consistent. The increase would be divided by the original amount and then multiplied by 100 to arrive at the percentage increase of 2.6%.