-74.07% is the change from 243 to 63
Calculation steps:
[( 63 - 243 ) ÷ 243] x 100 = -74.07%
Formula
Percentage change = [(63 - 243) / 243] x 100
Subtract the new number by the original number
63 - 243 = -180
-180 ÷ 243 = -0.7407407407407407
-0.7407407407407407 x 100 = -74.07%