problem in progress Bar C#

Question

hi friends,

 

i m stuck up in progress bar. actually i have 4 to 5  functions and have only one button when i click on button i want to use progress bar which would show me percentage of works . supose first function is add , subtract, devid , multipication like these kind of function . when first function is executed then its show me 10 percentage progress if second function is done then it show me 20 % like in this way bar complete and also show me in labels percentage like (10%,20%,30%). if some function stuck up then label will be show me error. hope u are understand what i want..

 

thanks in advance friends