The armstrong group (sep / dec 2015 )

When we look at the answer,

Horan has a payable of 5.22
Massie has a receivable of 11.57
Armstrong has a payable of 9.36
Giffen has a receivable of 3.01

Which means

We can settle all payment and receipt by

Armstrong pay to massie 9.36
Horan pay to massie 5.22
Massie pay to Giffen 3.01

Shouldnt the payment to each respective party be like i have written above ?

I really cant seem to figure out with the help of ur lectures as well