-90.12% is the change from 243 to 24
Calculation steps:
[( 24 - 243 ) ÷ 243] x 100 = -90.12%
Formula
Percentage change = [(24 - 243) / 243] x 100
Subtract the new number by the original number
24 - 243 = -219
-219 ÷ 243 = -0.9012345679012346
-0.9012345679012346 x 100 = -90.12%