-32.87% is the change from 505 to 339
Calculation steps:
[( 339 - 505 ) ÷ 505] x 100 = -32.87%
Formula
Percentage change = [(339 - 505) / 505] x 100
Subtract the new number by the original number
339 - 505 = -166
-166 ÷ 505 = -0.3287128712871287
-0.3287128712871287 x 100 = -32.87%