-54.73% is the change from 455 to 206
Calculation steps:
[( 206 - 455 ) ÷ 455] x 100 = -54.73%
Formula
Percentage change = [(206 - 455) / 455] x 100
Subtract the new number by the original number
206 - 455 = -249
-249 ÷ 455 = -0.5472527472527473
-0.5472527472527473 x 100 = -54.73%