% Mass reading and PPM

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353
Location
Australia
Hi all, I was just wondering is there a formula or something that you can use to convert a % mass value to it's PPM reading? eg: If %Mass of Molly = 0.022 what would it's PPM be. OR: eg: If PPM of Molly is 80 what would the % Mass value be? Thanks all for any help. Francis.
 
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