How to decrease the number 13,000
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% × 13,000
New Value =
The original value - Value of Percentage Decrease =
13,000 - (1% × 13,000)
1. Calculate the End Value
decreased by a percentage of its Initial Value
End Value =
13,000 - Value of Percentage Decrease =
13,000 - (1% × 13,000) =
13,000 - 1% × 13,000 =
(13,000 is a common factor)
(1 - 1%) × 13,000 =
(100% - 1%) × 13,000 =
99% × 13,000 =
99 ÷ 100 × 13,000 =
99 × 13,000 ÷ 100 =
1,287,000 ÷ 100 =
12,870
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% × 13,000
The second method:
Value of Percentage Decrease =
The original value - New Value
Value of Percentage Decrease =
130
The end value: 13,000 decreased by 1% percent = 12,870
Value of Percentage Decrease = 130