-54.75% is the change from 999 to 452
Calculation steps:
[( 452 - 999 ) ÷ 999] x 100 = -54.75%
Formula
Percentage change = [(452 - 999) / 999] x 100
Subtract the new number by the original number
452 - 999 = -547
-547 ÷ 999 = -0.5475475475475475
-0.5475475475475475 x 100 = -54.75%