-53.1% is the change from 612 to 287
Calculation steps:
[( 287 - 612 ) ÷ 612] x 100 = -53.1%
Formula
Percentage change = [(287 - 612) / 612] x 100
Subtract the new number by the original number
287 - 612 = -325
-325 ÷ 612 = -0.5310457516339869
-0.5310457516339869 x 100 = -53.1%