-82.61% is the change from 857 to 149
Calculation steps:
[( 149 - 857 ) ÷ 857] x 100 = -82.61%
Formula
Percentage change = [(149 - 857) / 857] x 100
Subtract the new number by the original number
149 - 857 = -708
-708 ÷ 857 = -0.8261376896149358
-0.8261376896149358 x 100 = -82.61%