Inccurate Weight Display

[medalto]

ive got 3 product weights 20g ,50g  and 100g

Ive added the weights to product -> shipping -> weight as 0.02,0.05  or 0.100 (kg)

 

and then using this https://www.prestashop.com/forums/topic/323462-how-to-show-product-weight/

 

display the weights in product information

and its displaying as

 

Product weight: 0.024  Kg

Product weight: 0.054  Kg

or

Product weight: 0.104  Kg

 

is it being 'helpful' by adding 4g  to everything ?

A rounding /calculation error ?

something else ?

 

 

FWIW the original values (0.02,0.05,0.1) are stored in ps_product.weight in the database

and when i change the displayed weight by removign the formatting its whatis in the databse ie 0.1000000

 

im puzzled

Edited November 27, 2015 by medalto (see edit history)