-6.53% is the change from 857 to 801
Calculation steps:
[( 801 - 857 ) ÷ 857] x 100 = -6.53%
Formula
Percentage change = [(801 - 857) / 857] x 100
Subtract the new number by the original number
801 - 857 = -56
-56 ÷ 857 = -0.06534422403733955
-0.06534422403733955 x 100 = -6.53%