For the price list, why are they converted as percentages?

There are numerous situations where you might need to add a percentage to a listed price. Figuring tax is probably the most common, but other fees, such as shipping or handling, may also be based on a percent of the list price. The calculation is carried out with some straightforward arithmetic.

a manufacturer of printed circuit boards uses exponential smoothing with trend to forecast monthly demand of its product. at the end of december, the company wishes to forecast sales for january. the estimate of trend through november has been 200 additional boards sold per month. average sales have been around 1000 units per month. the demand for december was 1100 units. the company uses α = 0.20 and β = 0.10. make a forecast including trend for the month of january.

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