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Is there a simple way to do this calculation on a page without using PHP on output? I have a member_field with a value and a channel_field with a value and want to output

{member_field} * {channel_field} = 
5

There is no direct way. I suggest you to install this module

Edit

If incase you have values to pass with comma separated (i.e., 5,00,000.05), You need to edit pi.math.php file to add this code on line number 54.

// remove commas
$formula = str_replace("," , "" , $formula);
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    Thank you. Unfortunately this plugin can not handle values with a comma. The dec_point parameter does not react to ','. Other than that, useful answer. – Werner Gusset Jan 18 '18 at 7:43
  • Not to worry about that. Just edit the plugin pi.math.php and add this code on line number 54. $formula = str_replace("," , "" , $formula); – Mufi - Amici Infotech Jan 18 '18 at 12:14
  • Have not tried that. I fear a missunderstanding. It's not the comma as a thousend separator, it's the comma as the decimal separator like in a currency like EUR 20,50. If we have EUR 20.50 the the plugin calculates. But 20,50 output is needed in Germany. – Werner Gusset Jan 18 '18 at 14:55
  • If you need to covert all , to use as decimal. You can change str_replace accordingly. Something like $formula = str_replace("," , "." , $formula); – Mufi - Amici Infotech Jan 18 '18 at 15:07
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    Have inserted that line of code - one line above this: @eval("\$result = $formula;");. 2 x EUR 2,00 = EUR 400.00 is the result when Cartthrob has the decimal separator to comma. Only if it is the point then I get the result of the formula right. – Werner Gusset Jan 18 '18 at 17:41

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