-99.05% is the change from 949 to 9
Calculation steps:
[( 9 - 949 ) ÷ 949] x 100 = -99.05%
Formula
Percentage change = [(9 - 949) / 949] x 100
Subtract the new number by the original number
9 - 949 = -940
-940 ÷ 949 = -0.9905163329820864
-0.9905163329820864 x 100 = -99.05%