This can be done in a relatively simple way.
VTL="5kV";
fprintf('Initial Value is: %s circuit values\n', VTL)
... % Your calculation codes come here:
VTL = rand(5, 1)*10;
fprintf('The followings are the 5kV circuit values: %f \n', VTL)
... % Your calculation codes come here:
VTL = VTL+rand(5,1)*5;
fprintf('The final values are: %f \n', VTL)
