Question: Was the income from furniture sales higher or lower in 2020 than in 2019? Give $i$, the actual difference in rand; and $ii$, the percentage difference in this income for the two years.
1. **State the problem:** We need to find if the income from furniture sales was higher or lower in 2020 compared to 2019.
2. **Identify given data:** The problem does not provide explicit income values for 2019 and 2020, so let's denote:
- Income in 2019 as $I_{2019}$
- Income in 2020 as $I_{2020}$
3. **Calculate the actual difference $i$:**
$$i = I_{2020} - I_{2019}$$
- If $i > 0$, income was higher in 2020.
- If $i < 0$, income was lower in 2020.
4. **Calculate the percentage difference $ii$:**
$$\text{Percentage difference} = \frac{i}{I_{2019}} \times 100 = \frac{I_{2020} - I_{2019}}{I_{2019}} \times 100$$
5. **Interpretation:**
- A positive percentage means an increase in income.
- A negative percentage means a decrease in income.
6. **Summary:**
- To answer the question, substitute the actual income values for $I_{2019}$ and $I_{2020}$ into the formulas above.
Since no specific numbers were provided, this is the general method to find the actual and percentage difference in income from furniture sales between 2019 and 2020.