How are the ring growth rate and year-on-year growth rate calculated? What is the calculation formula?

1, the calculation formula of the year-on-year growth rate = (index value of the year-value of the same period last year) ÷ value of the same period last year *100%;

(1) If the calculated value is positive (+), it is called growth rate; If the calculated value is negative (-), it is called decline rate.

(2) The current period refers to the same day, week and month, and the same period of last year refers to the same day, week and month of last year.

For example, Zhang San's salary in May of 20 15 is 6000 yuan. If you want a year-on-year growth rate, you should know Zhang San's salary in May of 20 14.

2. The calculation formula of the growth rate of the current period is = [(current index value-previous period value) ÷ previous period value *100%;

(1) If the calculated value is positive (+), it is called growth rate; If the calculated value is negative (-), it is called decline rate.

(2) If the current period refers to the current day, this week, the current month and this year, the previous period refers to yesterday, last week, last month and last year.

For example, in May of 20 15, Zhang San's salary was 6000 yuan. If the growth rate of the chain is required, we should know Zhang San's salary in April of 20 15.

Extended data:

1, year-on-year growth rate, generally refers to the growth rate compared with the same period last year. Year-on-year growth rate (range) compared with the previous period, year or history. The development speed can be divided into year-on-year development speed, ring-on-ring development speed and fixed-base development speed due to different base periods. Expressed as a percentage or multiple.

2. Ring comparison is divided into daily ring comparison, weekly ring comparison, monthly ring comparison and annual ring comparison.

The ring-on-ring development speed is the dynamic relative number obtained by comparing the level of the reporting period with the level of the previous period (comparison of adjacent periods). If the comparison between each month of a year and last month is calculated, that is, February is 1 month, March is 1 month, and April is 1 month, indicating the development degree of each month.

References:

Year-on-year growth _ Baidu Encyclopedia