
Jashan K. answered 02/24/21
Licensed CPA with effective test prep and accounting skills
The simple formula for markup is:
Sales Price - Cost = Markup.
Since the markup is 25% of the SP, that would indicate that the the markup value is .25 times $66.67. This would result in $16.67 (rounded) as the markup values.
To get to the cost, you would use the formula highlighted.
SP (66.67) - Cost = 16.67
Subtract 66.67 from 16.67 to get -50. Drop the negative as both sides of the equation are negative. Your answer for the cost is $50.