A buy order is a shopping list
When you press BUY, you're telling the market: 'I want X shares at today's price.' The market matches you with a seller and pow — the shares are yours.
Selling turns shares back into VCcoins
Press SELL to swap shares back for VCcoins. If today's price is higher than what you paid, that's a PROFIT. If it's lower, that's a LOSS. Both are normal — smart investors learn from both.
Average cost
If you buy shares many times, your AVERAGE COST is the typical price you paid. Compare it to today's price to see if you're up or down.