Materials Quantity Unit cost (N) Total cost (N)
Stainless steel ¼ sheet 4,000 (1/4 sheet) 4,000
Acrylonitrile plastic steel ½ sheet 1,000(1/2 sheet) 1,000
Transformer (220-9V) 1 piece 500 500
Resistors (R1,R2,…R9) ............ 500 500
Capacitor (C1, C2, …C9) ............ 500 500
Bi-directional motor (6V-3W) 1 piece 2000 2000
LED (D1, D2, D3) ............ 200 200
Integrated Circuit (IC1, IC2 and IC3) ............ 1500 1500
Regulator (RG1,RG2) ............ 500 500
Relay (RL1, RL2 and RL3)   1000 1000
Variable Resistor ............ 300 300
Hopper construction workmanship and other costs     5,000
Total     17,000
Table 2: Bill of Engineering Measurement and Evaluation (BEME).