ratio; proportion; percentage; rate; comparatively
近年の製品テストの結果、ソフトウェアのバグの検出される_______は、高度な自動化テストにより劇的に低下しました。
As a result of recent product tests, the percentage of software bugs detected has dramatically decreased due to advanced automated testing.
relatively, comparatively
このアパートは駅に近くて、家賃も比較的安い。
This apartment is close to the station, and the rent is relatively cheap.
relatively, comparatively, rather, quite
この本は割と面白かったよ。
This book was quite interesting, actually.
relatively, comparatively, unexpectedly
今日の試験は、割合に簡単だった。
Today's exam was relatively easy.