8B-6. Can someone show me how to do this problem?

Will rate a thumb up for good response thanks so much (PLEASE CIRCLE OR HIGHLIGHT final answer thx)

Peter Billington Stereo, Inc., supplies car radios to auto manufacturers and is going to open a new plant. The company is undecided between Detroit and Dallas as the site. The fixed costs in Dallas are lower due to cheaper land costs, but the variable costs in Dallas are higher because shipping distances would increase. Dallas Detroit Fixed costs Variable costs $560,000 $28/radio $800,000 $21/radio a) Based on the analysis of the volume, after rounding the numbers to the nearest whole number, Dallas is best below and Detroit is best above radios. b) Dallas's fixed costs have increased by 10%. Based on the analysis of the volume, after rounding the numbers to the nearest whole number, Dallas is best below and Detroit is best above radios. Dallas Fixed costs Variable costs $560,000 $28/radio Detroit $800,000 $21/radio ers to the nearest whole number, Dallas is best below and Detroit is best above radios. alysis of the volume, after rounding the numbers to the nearest whole number, D: I and Detroit is bes 79,996 114,283 41,143 0 34,286 Dit is best above radios. whole number, Dallas is best below and Detroit is best above radios. 8,000 31,543 87,996 34,286 26,286