-70.88% is the change from 491 to 143
Calculation steps:
[( 143 - 491 ) ÷ 491] x 100 = -70.88%
Formula
Percentage change = [(143 - 491) / 491] x 100
Subtract the new number by the original number
143 - 491 = -348
-348 ÷ 491 = -0.7087576374745418
-0.7087576374745418 x 100 = -70.88%