18.12%
21%
22.5%
23.5% if the discounts are taken successively, 25 % if the discounts are taken at the same time. The latter is the less usual meaning of this question.
It is 100*[1 - (1 - 9/100)*(1 - 14/100)] % = 100*[1 - 0.9*0.86] % = 100*[1 - 0.774] % = 100*0.226 % = 22.6 %
The single discount that is equivalent to a series of 40 and 20 is 20.
Start with 100. 20% off leaves 80, 15% of 80 is 12, leaving 68, an overall reduction of 32%
Single trade discount versus discount series what kind of example for one or the other
Your question implies that the discounts are applied sequentially, that is the first is applied and then the second is applied to the reduced amount.: To work out the single equivalent discount, you need to work using the value after discount all the way through. A 15% discount can be calculated by working out 15% of the value and subtracting it, but this is also the equivalent of working out 100% - 15% of the original value, that is 85%. Similarly for the 20%, that is working out 100% - 20% = 80% of the original value. So the final value after both discounts is 80% of 85% of the original value which is 80% x 85% = 68% and represents a discount of 100% - 68% = 32%. Thus the discounts of 20% and 15% applied sequentially is equivalent to a single discount of 32%.
5/8/20
a single trade discount is just that one trade discount.
Describe the difference between a single trade discount versus and discount series and give an example
A single trade discount is only one discount for example 30% a series would be a discount of 20/10/5. Do not add them together they have to be taken separately.