Tolong rumus dan caranya trimakasih..

42] .................BERSIH JAYA
..................SERVIS MESIN CUCI
...................Laporan Laba - Rugi
.................Per 31..............................
----------------------------------------------------
Pendapatan jasa...................42.000
Beban :
B.perlengkapan 30.000
B.sewa......................1.000
...............................------------ +
Jumlah beban....................... 31.000
..................................................----------- -
Laba ......................................... 11.000
----------------------------------------------------

.......................BERSIH JAYA
................SERVIS MESIN CUCI
..........Laporan Perubahan Modal
..............Per 31.............................
----------------------------------------------------
Modal awal .......................... 140.000
Laba.............. 11.000
Prive.............. 5.000
.......................----------- -
Penambahan modal.............. 6.000
..................................................------------ +
Modal akhir........................... 146.000
------------------------------------------------------

Jadi besarnya modal akhir adalah
Rp 146.000,00 (B)