Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 0 + ( 1 × 0.5 ) ) ÷ 8 = 6.3%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
) = 0.427
SOS2 represents the average of opponents' SOS1.
AVERAGE(
) = 0.434
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.063 ) + ( 40% × 0.427 + ( 20% × 0.434 ) = 0.283
( 0.025 ) + ( 0.171 ) + ( 0.087 ) = 0.283