-53.5% is the change from 843 to 392
Calculation steps:
[( 392 - 843 ) ÷ 843] x 100 = -53.5%
Formula
Percentage change = [(392 - 843) / 843] x 100
Subtract the new number by the original number
392 - 843 = -451
-451 ÷ 843 = -0.534994068801898
-0.534994068801898 x 100 = -53.5%