-51.5% is the change from 699 to 339
Calculation steps:
[( 339 - 699 ) ÷ 699] x 100 = -51.5%
Formula
Percentage change = [(339 - 699) / 699] x 100
Subtract the new number by the original number
339 - 699 = -360
-360 ÷ 699 = -0.5150214592274678
-0.5150214592274678 x 100 = -51.5%