How to decrease the number - 9
by 6% of its value?
Value of Percentage Decrease. New Value
- A percentage value is nothing but a fraction with a denominator of 100:
- 6% = 6/100 = 6 ÷ 100 = 0.06
- ...
- To decrease a negative number, don't subtract from it, but add to it the 'Value of Percentage Decrease'.
- To decrease a positive number, subtract from it the 'Value of Percentage Decrease'.
- ...
Value of Percentage Decrease =
Percentage of the Decrease % × The original value =
6% × - 9
New Value =
The original value - Value of Percentage Decrease =
- 9 + (6% × - 9)
1. Calculate the End Value
decreased by a percentage of its Initial Value
End Value =
- 9 + Value of Percentage Decrease =
- 9 + (6% × - 9) =
- 9 + 6% × - 9 =
(- 9 is a common factor)
(1 + 6%) × - 9 =
(100% + 6%) × - 9 =
106% × - 9 =
106 ÷ 100 × - 9 =
106 × - 9 ÷ 100 =
- 954 ÷ 100 =
- 9.54
2. Value of Percentage Decrease
It can be calculated in two ways.
The first method:
Value of Percentage Decrease =
Percentage of the Decrease % × The original value =
6% × - 9
The second method:
Value of Percentage Decrease =
The original value - New Value
Value of Percentage Decrease =
0.54
The end value: - 9 decreased by 6% percent = - 9.54
Value of Percentage Decrease = 0.54