Answer:
Profit percentage = 11,500%
Step-by-step explanation:
Let's make an equation to find his profit percent.
Since he bought 192 dollars worth of book copies we have to start of with -192 in the equation
But he make a profit of 480 x 45 so we have to add that to -192.
-192 + 480 x 45 = x
We have to follow to rules of PEMDAS so we have to multiply first.
480 x 45 = 21600
-192 + 21600 = x
We know have to add them together to get x.
-192 + 21600 = 21408
21408 = x
Now we have to make it into a percentage.
We do that by dividing it by using a formula
Profit percentage = (Profit/Cost Price) × 100.
Profit percentage = (21408/192) × 100.
Profit percentage = (111.5) × 100.
Profit percentage = 11,500%