-92.88% is the change from 857 to 61
Calculation steps:
[( 61 - 857 ) ÷ 857] x 100 = -92.88%
Formula
Percentage change = [(61 - 857) / 857] x 100
Subtract the new number by the original number
61 - 857 = -796
-796 ÷ 857 = -0.9288214702450408
-0.9288214702450408 x 100 = -92.88%