The 99 percent is an exaggeration, but it is a high number if it's 80% give or take two %.

https://www.theforexguy.com/forex-traders-lose-money/
http://www.crbtrader.com/trader/v09n01/v09n01a01.asp
https://www.investopedia.com/article...ay-traders.asp
https://www.thebalance.com/why-do-fo...-money-1344936