-63.7% is the change from 427 to 155
Calculation steps:
[( 155 - 427 ) ÷ 427] x 100 = -63.7%
Formula
Percentage change = [(155 - 427) / 427] x 100
Subtract the new number by the original number
155 - 427 = -272
-272 ÷ 427 = -0.6370023419203747
-0.6370023419203747 x 100 = -63.7%