# Nested if error

I have tried to modify this formula, but now getting error - I know I'm using wrong number of parenthesis or something simple, but can't figure it out!
Can anyone help??

``=IF(OR(K2="SPOZ",K2="SPOZDEF"),AB2,ROUNDUP(IF(AND(OR(\$K2={"SPLB","SPLBDEF","SPLBHW","SPLBDEFHW"}),'Enter Data'!\$B\$4=""),\$G2/'Enter Data'!\$A\$4,IF(AND(OR(\$K2={"SPLB","SPLBDEF","SPLBHW","SPLBDEFHW"}),\$G2>=('Enter Data'!\$B\$4*1728)),\$G2/'Enter Data'!\$C\$4,IF(AND(OR(\$K2={"SPLB","SPLBDEF","SPLBHW","SPLBDEFHW"}), \$G2/'Enter Data'!\$A\$4, IF(AND(OR(\$A2={"E2","ESP","FO","PO","SO","E2AM","F1","F2","F3"}),'Enter Data'!\$B\$2=""),\$G2/'Enter Data'!\$A\$2, IF(AND(OR(\$A2={"E2","ESP","FO","PO","SO","E2AM","F1","F2","F3"}),\$G2>=('Enter Data'!\$B\$2*1728)),\$G2/'Enter Data'!\$A\$2, IF(AND(OR(\$A2={"E2","ESP","FO","PO","SO","E2AM","F1","F2","F3"}),\$G2<('Enter Data'!\$B\$2*1728)),\$G2/'Enter Data'!\$C\$2, IF(AND(\$A2="HD",'Enter Data'!\$B\$7=""),\$G2/'Enter Data'!\$A\$7,IF(AND(\$A2="HD",\$G2>=('Enter Data'!\$B\$7*1728)),\$G2/'Enter Data'!\$A\$7, IF(AND(\$A2="HD",\$G2<('Enter Data'!\$B\$4*1728)),\$G2/'Enter Data'!\$C\$7, IF(AND(OR(\$A2={"GR","PRP"}),'Enter Data'!\$B\$4=""),\$G2/'Enter Data'!\$A\$4, IF(AND(OR(\$A2={"GR","PRP"}),\$G2>=('Enter Data'!\$B\$4*1728)),\$G2/'Enter Data'!\$A\$4,IF(AND(OR(\$A2={"GR","PRP"}), \$G2<('Enter Data'!\$B\$4*1728)),\$G2/'Enter Data'!\$C\$4,IF(\$E2="PR",\$G2/'Enter Data'!\$A\$2,IF(AND(OR(\$A2={"IP","IE","IPF","IEF"}), 'Enter Data'!\$B\$10="",D2="Exp"),\$G2/'Enter Data'!\$A\$10,IF(AND(OR(\$A2={"IP","IE","IPF","IEF"}),\$G2>=('Enter Data'!\$B\$10*1728),D2="Exp"), \$G2/'Enter Data'!\$A\$10,IF(AND(OR(\$A2={"IP","IE","IPF","IEF"}),\$G2<('Enter Data'!\$B\$10*1728),D2="Exp"), \$G2/'Enter Data'!\$C\$10,IF(AND(OR(\$A2={"IP","IE","IPF","IEF"}),'Enter Data'!\$B\$13="",D2="Imp"),\$G2/'Enter Data'!\$A\$13, IF(AND(OR(\$A2={"IP","IE","IPF","IEF"}),\$G2>=('Enter Data'!\$B\$13*1728),D2="Imp"),\$G2/'Enter Data'!\$A\$13, IF(AND(OR(\$A2={"IP","IE","IPF","IEF"}),\$G2<('Enter Data'!\$B\$13*1728),D2="Imp"),\$G2/'Enter Data'!\$C\$13,0)))))))))))))))))))),0))``