-25.49% is the change from 612 to 456
Calculation steps:
[( 456 - 612 ) ÷ 612] x 100 = -25.49%
Formula
Percentage change = [(456 - 612) / 612] x 100
Subtract the new number by the original number
456 - 612 = -156
-156 ÷ 612 = -0.2549019607843137
-0.2549019607843137 x 100 = -25.49%