-8.48% is the change from 920 to 842
Calculation steps:
[( 842 - 920 ) ÷ 920] x 100 = -8.48%
Formula
Percentage change = [(842 - 920) / 920] x 100
Subtract the new number by the original number
842 - 920 = -78
-78 ÷ 920 = -0.08478260869565217
-0.08478260869565217 x 100 = -8.48%