-71.65% is the change from 857 to 243
Calculation steps:
[( 243 - 857 ) ÷ 857] x 100 = -71.65%
Formula
Percentage change = [(243 - 857) / 857] x 100
Subtract the new number by the original number
243 - 857 = -614
-614 ÷ 857 = -0.7164527421236873
-0.7164527421236873 x 100 = -71.65%