-68.4% is the change from 519 to 164
Calculation steps:
[( 164 - 519 ) ÷ 519] x 100 = -68.4%
Formula
Percentage change = [(164 - 519) / 519] x 100
Subtract the new number by the original number
164 - 519 = -355
-355 ÷ 519 = -0.6840077071290944
-0.6840077071290944 x 100 = -68.4%