-15.07% is the change from 942 to 800
Calculation steps:
[( 800 - 942 ) ÷ 942] x 100 = -15.07%
Formula
Percentage change = [(800 - 942) / 942] x 100
Subtract the new number by the original number
800 - 942 = -142
-142 ÷ 942 = -0.15074309978768577
-0.15074309978768577 x 100 = -15.07%