Chaz "never knowingly prepared to give ground" ™
It's a simple difference between an absolute figure and a ratio. The Bank of England rate has been reduced by 0.25%, which is a 50% cut on the previous rate. To repeat your example, the same cut to a 15% interest rate would equate to 7.5%.
Whatever, if you have looked after your finances and are debt free with some savings, you are being taken for a mug. I may be wrong but I thought you were an admirer of Thatcher, with all of her 'prudence' and irrelevant references to domestic budgeting. What we are seeing is the prudent being punished. For who's benefit? Not business, because the ****ing banks still aren't lending any of their money, which was apparently the point of this.
The Bank is financing its £60bn of quantative easing by a reverse auction (buy back) of long term gilts. These are the things that banks, insurance companies and pensions like as they help them hedge against long term liabilities. So we are mortgaging our future, yet again, for some wing and a prayer stuff on the short term economy.
Apparently the new Duke of Westminster will be paying virtually no inheritance tax on his £9bn windfall. Now there's a surprise.