Looks like the team shot percentage is average percentage of players taking shots instead of classical team efficiency percentage (total shots made/total shots attapted).

My team shot 29/42, match report percentage is 70.9%.
Opposition goalie stats were 13/42. match report percentage is 31%.
Total percentage is 101.9%.

Opposition shot 20/41, percentage is 41.9%.
My goalie stats were 21/41, percentage is 51.2%
Total percentage is 92.1%.