-42.11% is the change from 684 to 396
Calculation steps:
[( 396 - 684 ) ÷ 684] x 100 = -42.11%
Formula
Percentage change = [(396 - 684) / 684] x 100
Subtract the new number by the original number
396 - 684 = -288
-288 ÷ 684 = -0.42105263157894735
-0.42105263157894735 x 100 = -42.11%