Final answer:
To find the percent decrease in the price of the TV, subtract the sale price from the regular price to get the decrease, then divide by the regular price and multiply by 100. The percent decrease is 11.76%.
Step-by-step explanation:
To calculate the percent decrease in the price of the color TV, first determine the amount of the decrease by subtracting the sale price from the regular price. Then divide the amount of the decrease by the regular price and multiply by 100 to get the percent decrease.
Step 1: Subtract the sale price ($393.36) from the regular price ($445.81) to find the amount of the decrease.
Decrease = Regular Price - Sale Price
Decrease = $445.81 - $393.36
Decrease = $52.45
Step 2: Divide the decrease by the regular price and multiply by 100 to find the per cent decrease.
Percent Decrease = (Decrease ÷ Regular Price) × 100%
Percent Decrease = ($52.45 ÷ $445.81) × 100%
Percent Decrease = 0.1176 × 100%
Percent Decrease = 11.76%
Therefore, the per cent decrease in the price of the TV is 11.76%.