falling off

a noticeable deterioration in performance or quality; "the team went into a slump"; "a gradual slack in output"; "a drop-off in attendance"; "a falloff in quality"

विश्व व्यापार में निश्चय ही गिरावट का रुख है।

After few months at the age of 48 years Humayun died an accidental death after falling off from the stairs of his Library.