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 $1,600 per unit, of which $1090 is product cost and $510 is selling and administrative expenses. In addition, the total cost of $1,600 is made up of $910 variable cost and $690 fixed cost. The desired profit is $224 per unit.

Determine the markup percentage on total cost.