-55.88% is the change from 612 to 270
Calculation steps:
[( 270 - 612 ) ÷ 612] x 100 = -55.88%
Formula
Percentage change = [(270 - 612) / 612] x 100
Subtract the new number by the original number
270 - 612 = -342
-342 ÷ 612 = -0.5588235294117647
-0.5588235294117647 x 100 = -55.88%