Answer: Decreased by 25%
Step-by-step explanation: Percent decrease is original price minus new price all divided by original price times 100. If we plug our numbers into that equation,
$2,416 - $1,812 = $604
$604 / $2,416 = 0.25
0.25 x 100 = 25%
This is the total percent decrease in the cost of the TV over the full course of five years.