-79.16% is the change from 523 to 109
Calculation steps:
[( 109 - 523 ) ÷ 523] x 100 = -79.16%
Formula
Percentage change = [(109 - 523) / 523] x 100
Subtract the new number by the original number
109 - 523 = -414
-414 ÷ 523 = -0.7915869980879541
-0.7915869980879541 x 100 = -79.16%