-71.74% is the change from 506 to 143
Calculation steps:
[( 143 - 506 ) ÷ 506] x 100 = -71.74%
Formula
Percentage change = [(143 - 506) / 506] x 100
Subtract the new number by the original number
143 - 506 = -363
-363 ÷ 506 = -0.717391304347826
-0.717391304347826 x 100 = -71.74%