-73.98% is the change from 857 to 223
Calculation steps:
[( 223 - 857 ) ÷ 857] x 100 = -73.98%
Formula
Percentage change = [(223 - 857) / 857] x 100
Subtract the new number by the original number
223 - 857 = -634
-634 ÷ 857 = -0.7397899649941657
-0.7397899649941657 x 100 = -73.98%