-12.3% is the change from 447 to 392
Calculation steps:
[( 392 - 447 ) ÷ 447] x 100 = -12.3%
Formula
Percentage change = [(392 - 447) / 447] x 100
Subtract the new number by the original number
392 - 447 = -55
-55 ÷ 447 = -0.12304250559284116
-0.12304250559284116 x 100 = -12.3%