One of the measures that the banks have in assessing how people are managing in any economic situation is to look at disposable income. Of course this depends on what people are earning and will vary from person to person. Taking the mythical average to be £24000 a year.£1500 a month or £375 a week (after tax) They work on the 50-30-20 rule: ...
50% of your income on needs: essential living expenses, such as rent/mortgage, bills, food and transport to work
30% on wants: discretionary spending, such as eating out, shopping, trips and subscriptions
20% on savings or debt: paying off debt beyond minimum payments, or putting money into a savings account, investment or pension fund
So, if your monthly income was £1,500 after tax, you might spend:
£750 on needs
£450 on wants
£300 on savings or debts
Obviously as the cost of living spirals upwards the 'needs' spending increases, the wants diminish and although the savings may drop servicing debts may increase.
A 13.3% increase in inflation immediately adds £100 per month to the needs. Adding debt by working on 'minimum payment only prolongs the agony and extends the personal recession. Cutting back on future pension payments also has the effect of keeping a person on the bottom rung during their retirement.
For those interested in calculation their tax liability this site is useful.
Tax calc: