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19:08, 25 November 2013 Customers notice change in strategy performance results after some events in MultiCharts, for example when [[Backtesting vs Live Trading| comparing backtesting and live trading results]] or [[Why Identical Charts Are Showing Different Strategy Trading Results| comparing 2 charts strategy calculation results]]. The following events should be taken into consideration.
A strategy is '''recalculated''' ('''backtested''') when:
* MultiCharts is '''closed''' and '''restarted''',
* [[Getting Started with AutoTrading| Auto-trading is '''turned on''']]
* [[Getting Started with AutoTrading| Auto-trading is '''turned off''']],
* Any '''setting''' from '''Strategy Properties''' window is '''changed''' and OK is clicked,
* Any '''setting''' of any signal in [[Signal Settings| '''Format Signal''': ...]] is '''changed''' and OK is clicked,
* Any [[Category:Chart Settings| '''setting''' of the '''chart''']] is '''changed''' and OK is clicked,
* Chart is [[Reloading Charts| '''reloaded''']],
* Chart is [[MultiCharts Work Area#Copying Windows| '''copy-pasted''']] (the strategy is '''recalculated on the copy''' of the original chart),
* Any signal script is [[Editing Study Scripts#Compiling Scripts| '''re-compiled''']] in PowerLanguage Editor.
[[Category:FAQ]]