ROI is calculated by subtracting the initial value of the investment from the final value of the investment (which equals the net return), then dividing this new number (the net return) by the cost of the investment, then finally, multiplying it by 100.
Read moreHow do I calculate pool volume in Litres?
From edge to edge, measure the length and the width of your oval pool. Multiply the length and the width by pi (3.14) divide the result by 4, then multiply the result by the average depth. Take the result of that and multiply by 28.31 to get the volume of your pool in litres.
Read moreHow do you calculate pool chemicals?
The following form represents an easy method to calculate pool volume.
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