How to calculate the month on month growth rate

How to calculate the month on month growth rate

The ratio of the difference between the current period and the previous period to the previous period
The formula is: month on month ratio = (current period - previous period) △ previous period × 100%

Negative minus negative minus negative minus negative
(10) - (- 24) - (- 12) - 3

Negative minus negative minus negative = negative plus positive plus positive
(10)-(-24)-(-12)-3
=10+24+12-3
=43

Those who understand mathematics come in (multiplication of negative numbers)
1.（-2）*（-8）*（-125）
2.0.25*（-3.1）*（-8）
3.-4*（-5）*0.25
4.100*（-3）*（-5）*0.01
5.2.25*（-2.3）*3/25
6.-2.1*6.5*（-3/7）

1.（-2）*（-8）*（-125） = 16 * (-125) = -20002. 0.25*（-3.1）*（-8） = 0.25 * 24.8 = 6.23. -4*（-5）*0.25 = 20 * 0.25 = 54. 100*（-3）*（-5）*0.01 = (-300) * (-0.05) = 155. 2.25*（-2.3）*3/25 = -5.17...

How to multiply negative numbers
31.2×（-10/7）-4/21×3

1、 First calculate (- 10 / 7) in brackets, and the number is negative
2、 Then multiply 31.2 times the number in "one"
3、 4 / 21 times 3
4、 The final answer is to subtract "three" from "two"