Eview Cinemas Co

While calculating the impact on EPS in question a, it adds the interest saved on 10% loan notes, but the answer doesn't add the interest saved on other loan notes. As it says "The overall pre-tax cost of debt is currently 9% and can be assumed to fall to 8% when the 10% loan notes are redeemed", it should save 1% interest on the remaining loan notes ($2700m), bank loans ($985m) and current liabilities ($2166m). Is this because I am overthinking? Many thanks in advance!