-48.66% is the change from 672 to 345
Calculation steps:
[( 345 - 672 ) ÷ 672] x 100 = -48.66%
Formula
Percentage change = [(345 - 672) / 672] x 100
Subtract the new number by the original number
345 - 672 = -327
-327 ÷ 672 = -0.48660714285714285
-0.48660714285714285 x 100 = -48.66%