Actual food costs in Teahouse Restaurant in Stanley Park in December $2022$ were $$18,110\mathrm{.}25$ and the food sales were $$50,028\mathrm{.}50.$ If standard costs estimated for December should have been $$16,749\mathrm{.}75,$ what were the potential savings as a percentage of sales? Show the full calculation and round all intermediate calculations and the final result to one decimal place.