Campaigncost overview: total sum was not a number sometimes (NaN)

entity/CampaignAnalysis_entity/entityfields/totalcosts/valueProcess.js

 import("system.vars");
 import("system.result");
+import("system.eMath");
 
-result.string(parseFloat(vars.get("$field.VariableCosts")) + parseFloat(vars.get("$field.FixCosts")));
\ No newline at end of file
+result.string(eMath.addDec(vars.get("$field.VariableCosts"), vars.get("$field.FixCosts")));
\ No newline at end of file