-33.82% is the change from 612 to 405
Calculation steps:
[( 405 - 612 ) ÷ 612] x 100 = -33.82%
Formula
Percentage change = [(405 - 612) / 612] x 100
Subtract the new number by the original number
405 - 612 = -207
-207 ÷ 612 = -0.3382352941176471
-0.3382352941176471 x 100 = -33.82%