-53.95% is the change from 684 to 315
Calculation steps:
[( 315 - 684 ) ÷ 684] x 100 = -53.95%
Formula
Percentage change = [(315 - 684) / 684] x 100
Subtract the new number by the original number
315 - 684 = -369
-369 ÷ 684 = -0.5394736842105263
-0.5394736842105263 x 100 = -53.95%