Princeton Avionics makes aircraft instrumentation. Its basic navigation radio requires $ 80$80 in variable costs and $ 3 comma 000$3,000 per month in fixed costs. Princeton sells 2020 radios per month. If the company further processes the radio, to enhance its functionality, it will require an additional $ 30$30 per unit of variable costs, plus an increase in fixed costs of $ 400$400 per month. The current sales price of the radio is $ 270$270. The CEO wishes to improve operating income by $ 1 comma 100$1,100 per month by selling the enhanced version of the radio. In order to meet this target, the sales price to be charged for the enhanced product is ________.