-64.2% is the change from 243 to 87
Calculation steps:
[( 87 - 243 ) ÷ 243] x 100 = -64.2%
Formula
Percentage change = [(87 - 243) / 243] x 100
Subtract the new number by the original number
87 - 243 = -156
-156 ÷ 243 = -0.6419753086419753
-0.6419753086419753 x 100 = -64.2%