Question

Find the percent of change when the price of a radio changes from 40.00 to 44.00

Answer 1

To find the percent of change when the price of a radio changes from $40.00 to $44.00, we can use the following formula:

percent change = (new value - old value) / old value * 100%

where "old value" is the original price of the radio ($40.00) and "new value" is the new price of the radio ($44.00).

Substituting these values into the formula, we get:

percent change = (44.00 - 40.00) / 40.00 * 100%
percent change = 4.00 / 40.00 * 100%
percent change = 0.10 * 100%
percent change = 10%

Therefore, the percent of change when the price of the radio changes from $40.00 to $44.00 is a 10% increase.