The DMR folder puts the cost of producing a kilogram of dhingri at 10-15 rupees. It is undated, from the early 2010s, and marked medium confidence. The 2011 manual's model assumes 70 per cent biological efficiency and a sale price of 50 rupees per kg. Use these to learn the shape of a budget, never as today's prices.
Your numbers come from your diary: straw, spawn, polythene, labour and power for one batch; kilograms sold, not picked; the price each buyer actually paid; kilograms thrown away. Divide cost by kilograms sold. The folder itself prints two cycle lengths, 45-60 days in its introduction and 40-50 in its economics, so measure yours.