Same setting $($see below$),$ if the swap bank charges $20$ basis points, and the TX Instruments and the Japanese Company split the remaining QSD evenly, how much does TX Instruments save?

As CEO of TX Instruments you are considering financing your Japanese operations with debt. US $10-$year treasuries are currently at $4\mathrm{.}1\%$ and Japanese $10-$year treasuries are at $0\mathrm{.}75\%.$ You can borrow at $5\mathrm{.}85\%$ domestically $(175$ bp over the US $10$ year treasury$)$ or at $3\mathrm{.}0\%(225$ bp over the Japanese treasury$)$ in Japanese yen. Assume that there exists a Japanese company that can borrow at $100$ bp over the Japanese treasury and at $120$ bp over the US treasury. What is the Quality Spread Differential $($QSD$)$ in basis points for a swap between TX Instruments and the Japanese company?