-89.78% is the change from 949 to 97
Calculation steps:
[( 97 - 949 ) ÷ 949] x 100 = -89.78%
Formula
Percentage change = [(97 - 949) / 949] x 100
Subtract the new number by the original number
97 - 949 = -852
-852 ÷ 949 = -0.8977871443624869
-0.8977871443624869 x 100 = -89.78%