Song: "Once You Understand"
Artist: Think
Peak position on the Cashbox Singles chart: #29
Number of weeks on the Cashbox Singles chart: 8
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| December 11, 1971 | 95 | Once You Understand | Think | Laurie 3583 |
| December 18, 1971 | 88 | Once You Understand | Think | Laurie 3583 |
| December 25, 1971 | 58 | Once You Understand | Think | Laurie 3583 |
| January 1, 1972 | 45 | Once You Understand | Think | Laurie 3583 |
| January 8, 1972 | 32 | Once You Understand | Think | Laurie 3583 |
| January 15, 1972 | 30 | Once You Understand | Think | Laurie 3583 |
| January 22, 1972 | 29 | Once You Understand | Think | Laurie 3583 |
| January 29, 1972 | 67 | Once You Understand | Think | Laurie 3583 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.