Song: "Let Me Know (I Have A Right)"
Artist: Gloria Gaynor
Peak position on the Cashbox Singles chart: #62
Number of weeks on the Cashbox Singles chart: 7
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| September 22, 1979 | 83 | Let Me Know (I Have A Right) | Gloria Gaynor | Polydor 2021 |
| September 29, 1979 | 72 | Let Me Know (I Have A Right) | Gloria Gaynor | Polydor 2021 |
| October 6, 1979 | 66 | Let Me Know (I Have A Right) | Gloria Gaynor | Polydor 2021 |
| October 13, 1979 | 63 | Let Me Know (I Have A Right) | Gloria Gaynor | Polydor 2021 |
| October 20, 1979 | 62 | Let Me Know (I Have A Right) | Gloria Gaynor | Polydor 2021 |
| October 27, 1979 | 77 | Let Me Know (I Have A Right) | Gloria Gaynor | Polydor 2021 |
| November 3, 1979 | 94 | Let Me Know (I Have A Right) | Gloria Gaynor | Polydor 2021 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.