-76.47% is the change from 102 to 24
Calculation steps:
[( 24 - 102 ) ÷ 102] x 100 = -76.47%
Formula
Percentage change = [(24 - 102) / 102] x 100
Subtract the new number by the original number
24 - 102 = -78
-78 ÷ 102 = -0.7647058823529411
-0.7647058823529411 x 100 = -76.47%