-68.5% is the change from 454 to 143
Calculation steps:
[( 143 - 454 ) ÷ 454] x 100 = -68.5%
Formula
Percentage change = [(143 - 454) / 454] x 100
Subtract the new number by the original number
143 - 454 = -311
-311 ÷ 454 = -0.6850220264317181
-0.6850220264317181 x 100 = -68.5%