-45.1% is the change from 612 to 336
Calculation steps:
[( 336 - 612 ) ÷ 612] x 100 = -45.1%
Formula
Percentage change = [(336 - 612) / 612] x 100
Subtract the new number by the original number
336 - 612 = -276
-276 ÷ 612 = -0.45098039215686275
-0.45098039215686275 x 100 = -45.1%