-73.28% is the change from 857 to 229
Calculation steps:
[( 229 - 857 ) ÷ 857] x 100 = -73.28%
Formula
Percentage change = [(229 - 857) / 857] x 100
Subtract the new number by the original number
229 - 857 = -628
-628 ÷ 857 = -0.7327887981330222
-0.7327887981330222 x 100 = -73.28%