where is qoq less effective 
an industry that experiences seasonal sales variance may not get an accurate picture of their well being from qoq analysis a downward trend may be an industry norm the same goes for a business that experiences higher earnings during a peak season that may reflect abnormally high growth from one quarter to the next the bottom linequarter on quarter qoq calculates the change between one fiscal quarter and the previous fiscal quarter the measuring technique gives investors and analysts an idea of how a company is growing over each quarter 