-91.77% is the change from 243 to 20
Calculation steps:
[( 20 - 243 ) ÷ 243] x 100 = -91.77%
Formula
Percentage change = [(20 - 243) / 243] x 100
Subtract the new number by the original number
20 - 243 = -223
-223 ÷ 243 = -0.9176954732510288
-0.9176954732510288 x 100 = -91.77%