-65.63% is the change from 451 to 155
Calculation steps:
[( 155 - 451 ) ÷ 451] x 100 = -65.63%
Formula
Percentage change = [(155 - 451) / 451] x 100
Subtract the new number by the original number
155 - 451 = -296
-296 ÷ 451 = -0.656319290465632
-0.656319290465632 x 100 = -65.63%