-20% is the change from 455 to 364
Calculation steps:
[( 364 - 455 ) ÷ 455] x 100 = -20%
Formula
Percentage change = [(364 - 455) / 455] x 100
Subtract the new number by the original number
364 - 455 = -91
-91 ÷ 455 = -0.2
-0.2 x 100 = -20%
Example