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\begin{equation}
\begin{aligned}
\textbf{Cpl} (0,T_{j-1},T_j,\tau_j,K) &= \tau_j P(0,T_j) \Biggl[\sum_{i=1}^N \psi_i \exp^{-\frac{1}{2} \beta_i^2 t+ \beta_i h_t^{-1}(F_j(t))}\,\Phi\Biggl(\frac{\beta_i(T_{j-1}-t)-h_{T_{j-1}}^{-1}(K)+ h_t^{-1}(F_j(t))}{\sqrt{T_{j-1}-t}}\Biggr) \\
&\quad -K \Phi\Biggl(\frac{h_t^{-1}(F_j(t))-h_{T_{j-1}}^{-1}(K)}{\sqrt{T_{j-1}-t}}\Biggr)\Biggr]
\end{aligned}
\end{equation}