Answer:
15.4%
Explanation:
Price of T-Shirt = $6.50
Shipping Cost of T-Shirt = $1.00
To find percentage the shipping cost is OF the T-shirt Cost, we have to divide:
Shipping Cost
by
T shirt cost
Then multiply by 100.
Let's do this. Shown below:

That is, 15.35%, but we need to round to nearest tenth (1 decimal place).
So, the shipping fee is 15.4% of tshirt cost.