efficiency symbol: crossword clues

Matching Answer
Confidence
ETA
60%
MPG
47%
SYSTEMSANALYSTS
41%
ICON
20%
ORDER
20%
EPA
20%
CLEF
20%
WILLYNILLY
20%
WELLOILED
20%
TIMESTUDY
20%
e.g. Greek Cheese
e.g. O?D (Use ? for unknown letters)