Convert lamports to SOL [Solana]

[Kremed]

Is this the correct way to upgrade the balance from lamports to SOL

double GetBalanceInSOL(ulong lamports)
{
    var ValueInSolana = (int)lamports * 0.000000001;
    return lamports * 0.000000001;
}

When performing this process, this number appears : 9.756100000000001E-05 SOL !!?
Account Balance is : 97561 lamport
Account Balance is : 9.756100000000001E-05 SOL

[Kremed]

I found the wallet repository contains how to perform this process, someone may benefit from this in the future

private async Task GetAccountBalance()
{
    var balance = await _rpcClient.GetBalanceAsync(CurrentWallet.Address, Solnet.Rpc.Types.Commitment.Confirmed);

    if (balance.WasRequestSuccessfullyHandled)
    {
        CurrentNativeBalance = balance.Result.Value;
        CurrentBalance = SolHelper.ConvertToSol(balance.Result.Value);
    }
}

public static decimal ConvertToSol(ulong lamports)
  {
      return decimal.Round((decimal)lamports / 1000000000m, 9);
  }

I'm sorry for the many questions and inconveniences,