-59.78% is the change from 992 to 399
Calculation steps:
[( 399 - 992 ) ÷ 992] x 100 = -59.78%
Formula
Percentage change = [(399 - 992) / 992] x 100
Subtract the new number by the original number
399 - 992 = -593
-593 ÷ 992 = -0.5977822580645161
-0.5977822580645161 x 100 = -59.78%