Jamison Company uses the total cost method of applying the cost-plus approach to product pricing. Jamison produces and sells Product X at a total cost of $1,800 per unit, of which $1220 is product cost and $580 is selling and administrative expenses. In addition, the total cost of $1,800 is made up of $1030 variable cost and $770 fixed cost. The desired profit is $162 per unit.

Determine the markup percentage on total cost.