-77.94% is the change from 494 to 109
Calculation steps:
[( 109 - 494 ) ÷ 494] x 100 = -77.94%
Formula
Percentage change = [(109 - 494) / 494] x 100
Subtract the new number by the original number
109 - 494 = -385
-385 ÷ 494 = -0.7793522267206477
-0.7793522267206477 x 100 = -77.94%