How To Calculate Seasonal Variation -

And every year, she recalculated the indices using the latest three years of data, because seasons shift. A new boardwalk hotel opened, boosting spring sales. Her Spring Index crept up from 0.99 to 1.10.

"Finally," Leo said, "multiply that 'average season' by each Seasonal Index." how to calculate seasonal variation

Her profit margin increased by 18% not because she sold more ice cream, but because she stopped buying for summer in winter. And every year, she recalculated the indices using

Elena pulled up her tablet. She wrote: