-77.34% is the change from 631 to 143
Calculation steps:
[( 143 - 631 ) ÷ 631] x 100 = -77.34%
Formula
Percentage change = [(143 - 631) / 631] x 100
Subtract the new number by the original number
143 - 631 = -488
-488 ÷ 631 = -0.7733755942947702
-0.7733755942947702 x 100 = -77.34%