Hadley Company is considering the disposal of equipment that is no longer needed for operations. The equipment originally cost $600,000 and accumulated depreciation to date totals $460,000. An offer has been received to lease the machine for its remaining useful life for a total of $290,000, after which the equipment will have no salvage value. The repair, insurance, and property tax expenses that would be incurred by Hadley on the machine during the period of the lease are estimated at $75,800. Alternatively, the equipment can be sold through a broker for $230,000 less a 10% commission. Required: Prepare a differential analysis report, dated June 15. Use a minus sign to indicate costs or a negative impact on income. Below the report, indicate whether the equipment should be leased or sold.

Rate of return, standard deviation, coefficient of variation personal finance problem mike is searching for a stock to include in his current stock portfolio. he is interested in hi-tech inc.; he has been impressed with the company's computer products and believes hi-tech is an innovative market player. however, mike realizes that any time you consider a technology stock, risk is a major concern. the rule he follows is to include only securities with a coefficient of variation of returns below 1.07. mike has obtained the following price information for the period 2015 through 2018:hi-tech stock, being growth-oriented, did not pay any dividends during these 4 years. a. calculate the rate of return for each year, 2015 through 2018, for hi-tech stock. b. assume that each year's return is equally probable and calculate the average return over this time period. c. calculate the standard deviation of returns over the past 4 years. (hint: treat this data as a sample.) d. based on b and c determine the coefficient of variation of returns for the security. e. given the calculation in d what should be mike's decision regarding the inclusion of hi-tech stock in his portfolio?