The formula of the average value of the specific gravity multiple in the base period is: when calculating, you can first calculate the value of A/B, observe the options, divide the truncation by 1 or 2 digits, and then judge the answer by the size relationship between the later value and 1. When the answer can't be locked, you can calculate the return value to 1 bit after the decimal point, that is, 0. Several numbers or 1. Of course, if there are some obvious divisor multiples before and after, you can also consider approximate reduction from left to right.

Calculation formula of specific gravity in base period

Base period = current amount/1+ growth rate.

This is a mathematical formula, and it is an expression method that people find some connection between things in nature and express it in some way. It represents the equal or unequal relationship between the quantities of different things in nature, accurately reflects the internal and external relations of things, and is the basis for reaching another thing from one thing, so that people can better understand the essence and connotation of things.