Solution:

To find the GNPmp (Gross National Product at market prices), NNPmp (Net National Product at market prices), and NNPfc (Net National Product at factor cost), we need to understand the components involved in these calculations.

1. Gross National Product (GNP) at Market Prices:
GNP at market prices measures the total value of all final goods and services produced by the residents of a country in a given period, including both domestic and foreign production.

The formula to calculate GNPmp is:
GNPmp = Sale of goods and services + Other primary income

Given:
- Sale of goods and services = $70,000

Therefore, GNPmp = $70,000 + Other primary income

2. Net National Product (NNP) at Market Prices:
NNP at market prices is derived from GNP by subtracting depreciation. It represents the net value of goods and services produced after accounting for the wear and tear of capital.

The formula to calculate NNPmp is:
NNPmp = GNPmp - Depreciation

Given:
- Depreciation = $1,000

Therefore, NNPmp = GNPmp - $1,000

3. Net National Product (NNP) at Factor Cost:
NNP at factor cost is derived from NNP at market prices by adjusting for indirect taxes and subsidies. It represents the net value of goods and services produced after accounting for indirect taxes and subsidies.

The formula to calculate NNPfc is:
NNPfc = NNPmp - Indirect taxes + Subsidies

Given:
- Indirect taxes = $300
- Subsidies = $100

Therefore, NNPfc = NNPmp - $300 + $100

Calculations:
Using the given values, we can calculate the GNPmp, NNPmp, and NNPfc as follows:

GNPmp = $70,000 + Other primary income
NNPmp = GNPmp - $1,000
NNPfc = NNPmp - $300 + $100

Results:
The values of GNPmp, NNPmp, and NNPfc cannot be determined precisely without the specific value of "Other primary income" provided in the given information. However, the calculations above show the general formulas and steps to compute these values once the required information is available.

It is important to note that GNPmp represents the total output of goods and services produced by a country's residents, while NNPmp and NNPfc provide a measure of the net value of production after adjusting for depreciation, indirect taxes, and subsidies. These indicators help assess the economic performance and growth of a nation.

GNPmp : 90000NNPmp : 89000NNPfc : 88800.