100 POINTS!!!!!!!!!!!!!!!!!!!!!!! PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!! ASAP!!!!!!!!!!!!!! REVISION FOR A FINAL MATHS EXAMINATION MOCK IGCSE TOMORROW !!!!!!!!!!!!
A number was decreased by 28%.
By what percentage would the new value need to be increased in order to return to its original value?
If your answer is a decimal, then round it to 1 d.p.