Alba’s mousie bank account
| In/Out | Reason | Amount | Balance |
| In | Product review | 50 | 50 |
| In | Product review | 50 | 100 |
| In | Product reviews | 2 x 50 = 100 | 200 |
| In | Product reviews | 3 x 50 = 150 | 350 |
| In/Out | Reason | Amount | Balance |
| In | Product review | 50 | 50 |
| In | Product review | 50 | 100 |
| In | Product reviews | 2 x 50 = 100 | 200 |
| In | Product reviews | 3 x 50 = 150 | 350 |