-54.23% is the change from 992 to 454
Calculation steps:
[( 454 - 992 ) ÷ 992] x 100 = -54.23%
Formula
Percentage change = [(454 - 992) / 992] x 100
Subtract the new number by the original number
454 - 992 = -538
-538 ÷ 992 = -0.5423387096774194
-0.5423387096774194 x 100 = -54.23%