-92.41% is the change from 672 to 51
Calculation steps:
[( 51 - 672 ) ÷ 672] x 100 = -92.41%
Formula
Percentage change = [(51 - 672) / 672] x 100
Subtract the new number by the original number
51 - 672 = -621
-621 ÷ 672 = -0.9241071428571429
-0.9241071428571429 x 100 = -92.41%