-97.47% is the change from 672 to 17
Calculation steps:
[( 17 - 672 ) ÷ 672] x 100 = -97.47%
Formula
Percentage change = [(17 - 672) / 672] x 100
Subtract the new number by the original number
17 - 672 = -655
-655 ÷ 672 = -0.9747023809523809
-0.9747023809523809 x 100 = -97.47%