A solution containing 0.17 M Pb²⁺, 1.5×10⁻⁶ M Pb⁴⁺ , 1.5×10⁻⁶ M Mn²⁺, 0.17 M MnO₄⁻ , and 0.92 M HNO3 was prepared. For this solution, the balanced reduction half‑reactions and overall net reaction shown can occur.

5[Pb⁴⁺ + 2e⁻ ⇆ Pb²⁺] E+°=1.690 V
2[ MnO₄⁻ + 8 H⁺ + 5 e⁻ ⇆ Mn²⁺ + 4 H₂O] E−°=1.507 V
5 Pb⁴⁺ + 2 Mn²⁺ + 8 H₂O ⇆ 5 Pb²⁺ + 2 MnO₄⁻ + 16 H⁺

Determine °cell for this reaction.

°cell = ___ V