-12.1% is the change from 942 to 828
Calculation steps:
[( 828 - 942 ) ÷ 942] x 100 = -12.1%
Formula
Percentage change = [(828 - 942) / 942] x 100
Subtract the new number by the original number
828 - 942 = -114
-114 ÷ 942 = -0.12101910828025478
-0.12101910828025478 x 100 = -12.1%