-90.34% is the change from 942 to 91
Calculation steps:
[( 91 - 942 ) ÷ 942] x 100 = -90.34%
Formula
Percentage change = [(91 - 942) / 942] x 100
Subtract the new number by the original number
91 - 942 = -851
-851 ÷ 942 = -0.9033970276008493
-0.9033970276008493 x 100 = -90.34%