-71.17% is the change from 843 to 243
Calculation steps:
[( 243 - 843 ) ÷ 843] x 100 = -71.17%
Formula
Percentage change = [(243 - 843) / 843] x 100
Subtract the new number by the original number
243 - 843 = -600
-600 ÷ 843 = -0.7117437722419929
-0.7117437722419929 x 100 = -71.17%