-52.05% is the change from 949 to 455
Calculation steps:
[( 455 - 949 ) ÷ 949] x 100 = -52.05%
Formula
Percentage change = [(455 - 949) / 949] x 100
Subtract the new number by the original number
455 - 949 = -494
-494 ÷ 949 = -0.5205479452054794
-0.5205479452054794 x 100 = -52.05%