Need correct solution

Calculate total monthly remuneration of three workers X, Y and Z from the following data: (a) Standard production per month per worker - 1,000 units. Actual production during the month X - 850 units, Y - 750 units and Z - 950 units. (b) Piece work rate 1.00 per unit (actual production). (c) Additional production bonus is 50 for each percentage of actual production exceeding 80% over standard (e.g., 79% nil, 80% nil, 81% - 50, 82% - 100 and so on). (d) Dearness pay fixed 200 per month