-58.83% is the change from 991 to 408
Calculation steps:
[( 408 - 991 ) ÷ 991] x 100 = -58.83%
Formula
Percentage change = [(408 - 991) / 991] x 100
Subtract the new number by the original number
408 - 991 = -583
-583 ÷ 991 = -0.5882946518668012
-0.5882946518668012 x 100 = -58.83%