Q7 XYZ Ltd employs its workers for a single shift of 8 hours for 25 days in a month. The company has recently fixed the standard output for a mass production item and introduced an incentive scheme to boost output. Details of wages payable to the workers are as follows: (i) Basic wages/piece work wages at $2 per unit, subject to a guaranteed minimum wage of $60 per day. (ii) Dearness allowance at $40 per day. (iii)Incentive bonus: Standard output per day per worker :40 units; Incentive bonus upto 80% efficiency : Nil; Incentive bonus for efficiency above 80% : $50 for every 1% increase above 80% The details of performance of four workers for the month of April are as follows: Worker No. of days worked 25 Output (units) 820 A B 18 500 25 910 D 24 780 Calculate the total earnings of each of the workers