Final answer:
To calculate Ohm's commission rate for October, you subtract his salary from the total earnings to find the commission earned, then divide that number by the total sales and multiply by 100 to get the commission rate as a percentage, which is 5%.
Step-by-step explanation:
The student is asking for assistance in calculating the commission rate for Ohm's October earnings.
The given information includes total earnings of $970, a fixed salary of $350, and sales of $12,400.
To find the commission rate, we need to determine the amount earned through commission and then divide that by the sales amount.
Firstly, we subtract the fixed salary from the total earnings to get the commission earned: $970 - $350 = $620 (commission earned).
Then, to find the commission rate, we divide the commission earned by the total sales and multiply by 100 to get the percentage: ($620 ÷ $12,400) × 100 = 5%.
Therefore, Ohm's commission rate for October was 5%.