Awooden duck with a regular selling price of $109.45 is marked down to $69.50. what is the percent of markdown based on the regular price? (round to the nearest tenth percent.)

For this problem we need to find the decrease in value.
Decrease = Original Number - New Number
Then to find the percentage
% Decrease = Decrease (from above) / Original Number * 100
Let's use the numbers you gave.
Decrease = Original Number - New Number
$39.95 = $109.45 - $69.50
So, the price went down by $39.95
We are not done yet, we need to find the percentage.
% Decrease = Decrease (from above) / Original Number * 100
So, it would be
36.50% = ($39.95 / $109.45) * 100
36.50% = 0.3650 * 100
It had 36.50% off the original price.
I hope this helps.
YOU'RE WELCOME :D

Hi. Here is a break down of the problem, I hope it helps.

109.45 - 69.50 = 39.95

39.50 = (x)(109.45)

x = 39.95 ÷ 109.45

x =  0.365 or Rounded and converted to percent is 36.5%

Final Answer is: 36.5%

Take care,
Diana