Understand the idea
Looking only at a successful outcome hides the amount exposed to loss. A complete example includes what happens when no return is received.
Put it into practice
Write the initial amount beside both outcomes. If 100 units are committed and nothing is returned, the net result is minus 100 units.
Know the limits
A potential gain does not reduce the amount that can be lost in the unfavorable outcome.
The wider context
These guides use arithmetic to explain uncertainty, not to forecast earnings. A hypothetical multiplier is an assumption, not a promise. Real rules, fees, eligibility and outcomes differ. Practice credits have no cash value, and a worked example should never be treated as a reason to risk essential money.
Your next step
Use the practical step above only where it fits your situation. Before an account-specific action, check the current instructions from the service or device provider involved. Write down what you observed and what remains uncertain; that makes a follow-up question more useful.