-71.57% is the change from 503 to 143
Calculation steps:
[( 143 - 503 ) ÷ 503] x 100 = -71.57%
Formula
Percentage change = [(143 - 503) / 503] x 100
Subtract the new number by the original number
143 - 503 = -360
-360 ÷ 503 = -0.7157057654075547
-0.7157057654075547 x 100 = -71.57%