-83.77% is the change from 949 to 154
Calculation steps:
[( 154 - 949 ) ÷ 949] x 100 = -83.77%
Formula
Percentage change = [(154 - 949) / 949] x 100
Subtract the new number by the original number
154 - 949 = -795
-795 ÷ 949 = -0.8377239199157007
-0.8377239199157007 x 100 = -83.77%