Wacc

Sir please tel me just 1 thing I am still confuse in it that cost of equity, cost of pref shares, after tax cost of debt(IRR), Wacc should be given in percentage or in decimal in Sec C of paper (spread sheet)? As you said ealier that it is irrelevant any thing which comes in decimal should be rounded off or not, so suppose if any thing comes in decimal in Sec C of paper (spreadsheet) and I just round off it at 4 decimal place so would it be fine? And in case of NPV and its cashflows i.e sales, Vc, fc, tax etc if I round off each of these cashflows and the final NPV to 4 decimal places instead of nearest 000 in sec C of paper (spreadsheet) so would it be fine or not? Would examiner deduct marks for it?