-81.95% is the change from 604 to 109
Calculation steps:
[( 109 - 604 ) ÷ 604] x 100 = -81.95%
Formula
Percentage change = [(109 - 604) / 604] x 100
Subtract the new number by the original number
109 - 604 = -495
-495 ÷ 604 = -0.8195364238410596
-0.8195364238410596 x 100 = -81.95%