On Social Trader Tools, growth is calculated using Time-Weighted Return (TWR), a widely accepted method for measuring trading performance while accounting for deposits and withdrawals.
TWR separates trading performance from external cash flows, making it a more accurate measure of a strategy's returns over time than simply comparing account balances.
However, it's important to understand that deposits, withdrawals, and account resets can still affect how growth is presented historically. For example, if an account experiences a significant loss and is later refunded or funded with additional capital, the historical growth will continue to reflect that earlier loss rather than resetting the performance record.
For more information about Time-Weighted Return, see the Investopedia article on TWR, here