-9.6% is the change from 948 to 857
Calculation steps:
[( 857 - 948 ) ÷ 948] x 100 = -9.6%
Formula
Percentage change = [(857 - 948) / 948] x 100
Subtract the new number by the original number
857 - 948 = -91
-91 ÷ 948 = -0.09599156118143459
-0.09599156118143459 x 100 = -9.6%