The sente drops Silver at the head of Bishop...
Rook escapes to the side,..
Silver take a Bishop..
and then,, Rook take a Silver. Looking at the value table, Sente lost silver (-5 points) and gained Bishop (+8), so you gained total of 3 points, and Gote lost 3 points. in another word, there are 6 points gap created among players with this exchange.