Melbourne, Nov 2 : Although the 'art' called 'shopping' has no 'science' behind it, a mathematician has come up with the prefect formula for spending spree.
Roger Bird's algebraic formula takes in certain factors, which include time constraints, the number of shoppers in the group and the amount of spending money, to calculate the best conditions for a shopping trip.
The researcher from Bradford Education Authority, in Britain, devised the formula based on results of a shopping centre survey of 1000 people.
As per Bird's findings, the perfect excursion involved a visit to several clothing stores located close to each other between 9am and 11am on a Saturday, reports the Daily Telegraph.
The ideal number of purchases during the trip was at least three, within a budget of 490 dollars.
According to the survey, Saturday turned out to be the most popular day to shop, with nearly half of respondents saying they would rather go in the morning to beat the rush.
Forty-six per cent said they were willing to travel up to an hour to get their shopping fix, the survey claimed.
Women demonstrated more stamina with 60 per cent stating two to three hours as their optimal shopping time, as opposed to just one hour for their male counterparts, the study found.