-48.93% is the change from 891 to 455
Calculation steps:
[( 455 - 891 ) ÷ 891] x 100 = -48.93%
Formula
Percentage change = [(455 - 891) / 891] x 100
Subtract the new number by the original number
455 - 891 = -436
-436 ÷ 891 = -0.489337822671156
-0.489337822671156 x 100 = -48.93%