For example ZC ( Corn ) says syminfo.pointvalue = 5000 (syminfo.mintick = 0.13), which gives you (ATR = 6) 30,000 USD instead of the correct 300 USD.
For all other is used the default syminfo.pointvalue.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.