Nina is a representative for a gourmet food company selling food to delicatessens all over the city. she works for…

Nina is a representative for a gourmet food company selling food to delicatessens all over the city. she works for a commission of 19% on all sales but also has the option to be paid a retainer of $250, her commission rate would drop to 13%. what value of sales does she need to make in a week in order to be better off on a straight retainer basis?