A process costing system for J Co used an input of 3,500Kg of materials at Rs20 per Kg and labour hours of 2,750 at Rs 25 per hour. Normal loss is 20% and losses can be sold at a scrap value of Rs5 per Kg. Output was 2,950 Kg. What is the value of the output?

Material Cost = 3,500kg * ₹20 = ₹70,000
Labour Cost = 2,750hrs * ₹25 = ₹68,750
Total Cost = Material Cost + Labour Cost = ₹70,000 + ₹68,750 = ₹1,38,750
Normal Loss = 3,500kg * 20% = 700kg
Scrap Value = 700kg * ₹5 = ₹3,500
Net Cost = ₹1,38,750 - ₹3,500 = ₹1,35,250
Normal Output = 3,500kg - 700kg = 2,800kg
Cost per kg = ₹1,35,250/2,800kg = ₹48.30
Actual Output = 2,950kg
Value of Actual Output = 2,950kg * ₹48.30 = ₹1,42,485

Can anyone please share the detailed steps of calculation for this question? Thanks