Final may 14. financial reporting

Q.4(b) of financial reporting NBFC sum I forgot to deduct over due interest from principal amount and simply shown 1st thory of provision say 0%,10%,40%,100% and calculate principal and interest provision correctly based on above % but lastly not overdue int deducted from principal.so can u tell me how much I get out of 4 marks please give me your valuable opinion.