Hi, i'm backtest strategy "Turtle v.3.1" on all Data Set S&P100(Multi Symbol Backtest), I chose portfolio simulation mode and set ut parameter's : Start capital 1 000 000 and Share/Contracts = 20. i disabled commissions and slippage. In result i have equity and perfomance ( i prefer saw on Equity +), but i want chage parameter share/ contracts = 10, I got quite a different equity (very different), but this can not be due to the difference in volume shares. Missed and rejected trades - 0. Why is this happening?
two types of equity in Attachments.
Thank you!

There's not enough details to answer your question (even if you think that the rejected trades are 0). Wealth-Lab is a complex software, we have no idea about your data, various settings (like Symbol Info Manager, for example) can affect a backtest too etc. And I wouldn't be so sure that the change of the position size couldn't affect the equity curve shape.

@Eugene, Okay thank you, but how does the final equity. The sum of the results for all the tools that were in the Data set? And one more question, where can I see the result for each individual tool in the data set? By symbol -> Profit? But if you combine all Profit results on the Symbol tab, you will not get the result of the final equity

QUOTE:
how does the final equity. The sum of the results for all the tools that were in the Data set?

The net profit by instrument is most likely not equal to the system's net profit. A system's equity is built by combining each instrument's equity on a bar by bar basis with capital constraints.

QUOTE:
But if you combine all Profit results on the Symbol tab, you will not get the result of the final equity

It's not clear what you call the "result" for each symbol in a DataSet, if that's not the By Symbol tab.

QUOTE:
It's not clear what you call the "result" for each symbol in a DataSet, if that's not the By Symbol tab.

I attached the images and selected the area Profit. What is highlighted in yellow is the total Profit for each individual paper in Multi Backtest? Am I right?

Please refer to the Wealth-Lab User Guide. Specifically, Preferences > Performance Visualizers > By Symbol. Clicking on "Profit" will take you to Preferences > Performance Visualizers > Performance.

Thank's for your fast help!