Mears Production Company makes several products and sells them for an average price of $75. In 2014, Mears' accountant used two different approaches to estimate the firm's total monthly cost function, account analysis and high-low. In both cases, she used units of production as the independent variable. For the account analysis approach, she developed the cost function by analyzing each cost item in February, when production was 2,000 units. The following are the results of that analysis:

Cost Item	Total Cost	Variable Cost	Fixed Cost
Direct materials	$8,600	$8,600	$0
Direct labor	$10,000	$10,000	$0
Factory overhead	$8,120	$5,200	$2,920
Selling expenses	$6,900	$3,600	$3,300
Administrative expenses	$4,900	$0	$4,900

Part A 1. Using account analysis, what was the accountant's estimate of total fixed costs for October? 2. Using account analysis, what was the accountant's estimate of variable costs per unit for October?

Part B 1. Using the high-low method, what was the accountant's estimate of total fixed costs for October? 2. Using the high-low method, what was the accountant's estimate of total variable costs for October?