-91.97% is the change from 834 to 67
Calculation steps:
[( 67 - 834 ) ÷ 834] x 100 = -91.97%
Formula
Percentage change = [(67 - 834) / 834] x 100
Subtract the new number by the original number
67 - 834 = -767
-767 ÷ 834 = -0.919664268585132
-0.919664268585132 x 100 = -91.97%