Title: Equation Issue?
Last modified: May 18, 2017

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# Equation Issue?

 *  [calepwhoward](https://wordpress.org/support/users/calepwhoward/)
 * (@calepwhoward)
 * [9 years ago](https://wordpress.org/support/topic/equation-issue/)
 * My client noticed a minor math issue and I wanted to get a little help if possible.
   We have a product with a base price of $53.11. When ordering 26 or more we give
   a 10% discount. My customer noticed a very slight discrepancy when testing a 
   large quantity. When ordering 65 the calculated total after the discount is applied
   is $3,106.94. Another example – a product with a base price of $2.41 and a quantity
   of 560 after the 10% volume discount is calculated as $1,214.64. Unfortunately
   both of these calculations are incorrect because the calculation is being performed
   as follows:
 * ((unit price * quantity) * (100 – discount percentage))
 * when, based on the way prices are displayed, the equation should be:
 * (((unit price * (100-discount percentage)) * quantity)
 * Given the unit price is shown as discounted, my customer performed the second
   calculation. For the first example, the correct total should be $3,107 instead
   of $3,106.94. For the second example, the correct total should be $1,215.20 instead
   of $1,214.64. While these are minor discrepancies they have cast doubt on the
   integrity of my customer’s eCommerce website.
 * What’s your take on this? Thanks, and I am happy to provide you with any additional
   information you require.

The topic ‘Equation Issue?’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [calepwhoward](https://wordpress.org/support/users/calepwhoward/)
 * Last activity: [9 years ago](https://wordpress.org/support/topic/equation-issue/)
 * Status: not resolved