-62.1% is the change from 868 to 329
Calculation steps:
[( 329 - 868 ) ÷ 868] x 100 = -62.1%
Formula
Percentage change = [(329 - 868) / 868] x 100
Subtract the new number by the original number
329 - 868 = -539
-539 ÷ 868 = -0.6209677419354839
-0.6209677419354839 x 100 = -62.1%