Humus significantly influences the bulk density of soil and contributes to moisture and nutrient retention. Soil formation begins with the weathering of humus. In agriculture, humus is sometimes also used to describe mature, or natural compost extracted from a forest or other spontaneous source for use to amend soil.
The CAGR Formula. From Investopedia, Compound Annual Growth Rate ( CAGR ) is calculated as: =(Ending Value/Begining Value)^(1/# of years) -1. Restated: =(FV/PV)^(1/n) -1. where FV = Future Value, PV = Present Value, and n = number of periods. Calculate CAGR in Excel.
MIRR formula. where: 1  NPV() is the Excel NPV function. 2  rrate is the reinvestment rate. 3  frate is the finance rate. 4  values[positive] is the positive values in the array only. 5  values[negative] is the negative values in the array only. 6  n is the number of periods.