A Bradford school has won an international entrepreneurial challenge after raising more than £3,600 from just £1.

Tong High School triumphed in the schools category of the 2014 Micro-Tyco competition, after generating £3,657.06 from a £1 investment, donated to them by the Wildhearts charity.

Teams that enter Micro-Tyco receive £1 in seed capital which they are challenged to turn into as much money as possible, using any legal means, in just four weeks.

The scheme encourages team work and entrepreneurial spirit, with funds invested in micro-finance for micro-entrepreneurs in developing countries.

Pupils from the school, who were mentored by staff from Deloitte, used their £1 to produce some flyers to advertise a car-washing service for staff. They then re-invested the money from that venture into a Valentine’s Fair, featuring donations such as a Valentine’s card from Bradford’s One Direction star, Zayn Malik.

Using proceeds from that event, they then held a high-profile raffle, supported by local businesses, featuring a top prize of a European holiday with Jet2.

Head teacher, Steve Curran, said: “We are delighted with this result, and I would like to thank students, staff, Deloitte, and our partner organisations who together have made this enterprise challenge a huge success.

“The students worked extremely hard on the project and this opportunity has enabled them to practice and learn fundamental business concepts in a micro-environment. Throughout this process our students have been inspired to learn and develop their entrepreneurial thinking, and we look forward to taking part in the challenge again in the future.”

Mike Jackson, WildHearts Founder and Micro-Tyco creator, visited the school to present the trophy and give an inspirational talk to students.

He said: “The outstanding effort from Tong High School will fund 73 micro-businesses in the developing world every year, whilst inspiring school children across the UK to become Global Ethical Investors too.

“Micro-Tyco unites everyone from our children to our corporate executives with the vision that business can and must be a force for good.”

Staff from Deloitte have been working with 26 pupils from the school since November, through the Deloitte Access Programme, in partnership with Teach First. Their support included a brainstorming session to generate ideas, planning, business and pricing advice, providing structure and focus for the project, plus being a sounding board for the school team.