-88.41% is the change from 854 to 99
Calculation steps:
[( 99 - 854 ) ÷ 854] x 100 = -88.41%
Formula
Percentage change = [(99 - 854) / 854] x 100
Subtract the new number by the original number
99 - 854 = -755
-755 ÷ 854 = -0.8840749414519906
-0.8840749414519906 x 100 = -88.41%