How to decrease the number 7
by 1% of its value?
Value of Percentage Decrease. New Value
- A percentage value is nothing but a fraction with a denominator of 100:
- 1% = 1/100 = 1 ÷ 100 = 0.01
- ...
- To decrease a positive number, subtract from it the 'Value of Percentage Decrease'.
- To decrease a negative number, don't subtract from it, but add to it the 'Value of Percentage Decrease'.
- ...
Value of Percentage Decrease =
Percentage of the Decrease % × The original value =
1% × 7
New Value =
The original value - Value of Percentage Decrease =
7 - (1% × 7)
1. Calculate the End Value
decreased by a percentage of its Initial Value
End Value =
7 - Value of Percentage Decrease =
7 - (1% × 7) =
7 - 1% × 7 =
(7 is a common factor)
(1 - 1%) × 7 =
(100% - 1%) × 7 =
99% × 7 =
99 ÷ 100 × 7 =
99 × 7 ÷ 100 =
693 ÷ 100 =
6.93
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 =
1% × 7
The second method:
Value of Percentage Decrease =
The original value - New Value
Value of Percentage Decrease =
0.07
The end value: 7 decreased by 1% percent = 6.93
Value of Percentage Decrease = 0.07