-53.9% is the change from 987 to 455
Calculation steps:
[( 455 - 987 ) ÷ 987] x 100 = -53.9%
Formula
Percentage change = [(455 - 987) / 987] x 100
Subtract the new number by the original number
455 - 987 = -532
-532 ÷ 987 = -0.5390070921985816
-0.5390070921985816 x 100 = -53.9%