{"product_id":"v81039sidcal","title":"V. 8:10 (392-395): SIDEBAR: Calculating the standard deviation of the percentage change in closing prices","description":"SIDEBAR: Calculating the standard deviation of the percentage change in closing prices\u003cbr\u003e\u003cbr\u003eCalculating the ratio of two sequential prices in Lotus is straightforward. The natural log function is preprogrammed as @In(). The standard deviation of the logs can then be calculated with the @STD() function. Since the denominator in the @STD function is n rather than (n-1), the result should be multiplied by the square root of n\/(n-1) and further annualized with the proper A factor.","brand":"store-traders-com","offers":[{"title":"Default Title","offer_id":52134111412593,"sku":"\\V08\\C10\\SIDEBC.PDF","price":2.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0900\/3843\/6209\/files\/unnamed_a0950d06-6309-48ed-a620-6fa2b845c30f.jpg?v=1739667234","url":"https:\/\/shop.traders.com\/products\/v81039sidcal","provider":"Stocks \u0026 Commodities","version":"1.0","type":"link"}