Portfolio Turnover Rate

Greetings everyone,

I have a short question on the Turnover Rate.
It seems that the calculation method is different from what I imagine.
First, what I imagine was that if I buy --let’s say 10–, then sell that same amount (=10), this will give a Turnover Rate of 100%.
However, although I almost never sell my stocks, especially relative to the size that I buy, my Turnover Rate in the Portfolio is much higher than 100%, namely around 150%.
Could anyone have the kindness to explain me how this happened?
Thank you in advance for your help!

Best,

@hyeoum

The turnover ratio indicates the proportion of the portfolio accounted for by purchases and sales in the → reporting period. (@AndreasB )

If an inconsistent reporting period is not the explanation, please send screenshots.

Cheers, Laura