How to Use Microsoft Excel to Calculate Seasonal Indexes. A seasonal index is a way of measuring the seasonal variation -- that is, to measure the change that is due to seasonal changes in demand ...

How to Calculate Variance in Excel To calculate variance in Excel, you will need to have your data set already entered into the software. Once you have your data, you can choose your formula based ...

How to Calculate Y-Intercept in Excel. The y-intercept is the point at which a linear equation crosses the y-axis on the x=0 plot point. The equation to determine both the slope and the y ...