-67.37% is the change from 475 to 155
Calculation steps:
[( 155 - 475 ) ÷ 475] x 100 = -67.37%
Formula
Percentage change = [(155 - 475) / 475] x 100
Subtract the new number by the original number
155 - 475 = -320
-320 ÷ 475 = -0.6736842105263158
-0.6736842105263158 x 100 = -67.37%