I have this number 0.057287, if I write it in OOCalc, will be converted in 954.47.00. The only way to leave it as it was is to write '0.057287, but this last notation hide number from the charts. How can I turns off this issue?
Sounds to me like the format is set wrong for this column. Should be number and english format to show the number as you want it to show up.
Right click the cell and select 'Format Cell' (Libre office here but should be the same in OO)