calculate EMI In Objective - C

- (CGFloat)calculateEmi{

    CGFloat loanAmt =[[loanAmountTxt text]floatValue];

    CGFloat tenure =[[loanTenureTxt text]floatValue];

    CGFloat InterestRateReducing = [[IntRateTxt text]floatValue];

    CGFloat r = InterestRateReducing/12/100;

    

    CGFloat emi = (loanAmt * r)*(pow((1+r), tenure)/((pow((1+r), tenure)-1)));

    NSLog(@"emi value...%f",emi);

    return emi;

}