-91.43% is the change from 455 to 39
Calculation steps:
[( 39 - 455 ) ÷ 455] x 100 = -91.43%
Formula
Percentage change = [(39 - 455) / 455] x 100
Subtract the new number by the original number
39 - 455 = -416
-416 ÷ 455 = -0.9142857142857143
-0.9142857142857143 x 100 = -91.43%