-54.61% is the change from 857 to 389
Calculation steps:
[( 389 - 857 ) ÷ 857] x 100 = -54.61%
Formula
Percentage change = [(389 - 857) / 857] x 100
Subtract the new number by the original number
389 - 857 = -468
-468 ÷ 857 = -0.5460910151691949
-0.5460910151691949 x 100 = -54.61%