Simple Bond Calculator Question

N=4 I/Y = 7% PV = -$9 661 279 PMT = $600 000 FV = $10 000 000 When i input everything and cpt PV it gives me $5 596 625 But… If i input any 4 of the other 5 and cpt the other one, i always get the right answer (like if i solve for I/Y after putting the other 4 in) What am i doing wrong?

2nd clr tvm 10,000,000 FV 600,000pmt 7i/y 4n cpt pv = -9661278.87 = -9661279