-49.35% is the change from 154 to 78
Calculation steps:
[( 78 - 154 ) ÷ 154] x 100 = -49.35%
Formula
Percentage change = [(78 - 154) / 154] x 100
Subtract the new number by the original number
78 - 154 = -76
-76 ÷ 154 = -0.4935064935064935
-0.4935064935064935 x 100 = -49.35%