The value added can be calculated as follows:
Value Added = Final Sale Price - Cost of Inputs
Final Sale Price = $23,000
Cost of Inputs = $100,000 (leather) + $50,000 (glue) + $60,000 (nails)
Cost of Inputs = $210,000
Value Added = $23,000 - $210,000
Value Added = -$187,000
The negative value for the value added suggests that the shoe manufacturer experienced a loss. However, for the purpose of calculating the contribution to GDP, we consider the value added as zero since there was no positive gain in value from the production process.
Therefore, the contribution to the Canadian GDP in this case is zero.