-68.57% is the change from 455 to 143
Calculation steps:
[( 143 - 455 ) ÷ 455] x 100 = -68.57%
Formula
Percentage change = [(143 - 455) / 455] x 100
Subtract the new number by the original number
143 - 455 = -312
-312 ÷ 455 = -0.6857142857142857
-0.6857142857142857 x 100 = -68.57%