-77.69% is the change from 641 to 143
Calculation steps:
[( 143 - 641 ) ÷ 641] x 100 = -77.69%
Formula
Percentage change = [(143 - 641) / 641] x 100
Subtract the new number by the original number
143 - 641 = -498
-498 ÷ 641 = -0.7769110764430577
-0.7769110764430577 x 100 = -77.69%