-47.49% is the change from 678 to 356
Calculation steps:
[( 356 - 678 ) ÷ 678] x 100 = -47.49%
Formula
Percentage change = [(356 - 678) / 678] x 100
Subtract the new number by the original number
356 - 678 = -322
-322 ÷ 678 = -0.4749262536873156
-0.4749262536873156 x 100 = -47.49%