-50.15% is the change from 684 to 341
Calculation steps:
[( 341 - 684 ) ÷ 684] x 100 = -50.15%
Formula
Percentage change = [(341 - 684) / 684] x 100
Subtract the new number by the original number
341 - 684 = -343
-343 ÷ 684 = -0.5014619883040936
-0.5014619883040936 x 100 = -50.15%