-42.26% is the change from 672 to 388
Calculation steps:
[( 388 - 672 ) ÷ 672] x 100 = -42.26%
Formula
Percentage change = [(388 - 672) / 672] x 100
Subtract the new number by the original number
388 - 672 = -284
-284 ÷ 672 = -0.4226190476190476
-0.4226190476190476 x 100 = -42.26%