-12.6% is the change from 857 to 749
Calculation steps:
[( 749 - 857 ) ÷ 857] x 100 = -12.6%
Formula
Percentage change = [(749 - 857) / 857] x 100
Subtract the new number by the original number
749 - 857 = -108
-108 ÷ 857 = -0.12602100350058343
-0.12602100350058343 x 100 = -12.6%