-5.93% is the change from 911 to 857
Calculation steps:
[( 857 - 911 ) ÷ 911] x 100 = -5.93%
Formula
Percentage change = [(857 - 911) / 911] x 100
Subtract the new number by the original number
857 - 911 = -54
-54 ÷ 911 = -0.059275521405049394
-0.059275521405049394 x 100 = -5.93%