The formula to calculate the cost per kWh is:
\[ \text{CPKWH} = \frac{\text{TC}}{\text{P}} \]
where \( \text{CPKWH} \) is the cost per kilo-watt-hour, \( \text{TC} \) is the total cost (\$), and \( \text{P} \) is the total power consumption (kWh).
Cost per kWh is a measure of the cost per unit of power consumed by electronic devices. The average cost of electricity in the United States is 12.88 cents per kilowatt hour (kWh). This means that the average household that consumes 1000 kWh per month will pay \$128.80 for electricity, and residential customers who use 2,000 kWh of electricity in a month will have to pay \$257.60.
Let's assume we have the following values:
Step 1: Divide the total cost by the total power consumption:
\[ \text{CPKWH} = \frac{150}{1200} = 0.125 \]
Therefore, the cost per kWh is \( \text{CPKWH} = \$0.125 \) per kWh.
