-65.43% is the change from 243 to 84
Calculation steps:
[( 84 - 243 ) ÷ 243] x 100 = -65.43%
Formula
Percentage change = [(84 - 243) / 243] x 100
Subtract the new number by the original number
84 - 243 = -159
-159 ÷ 243 = -0.654320987654321
-0.654320987654321 x 100 = -65.43%