-79.73% is the change from 148 to 30
Calculation steps:
[( 30 - 148 ) ÷ 148] x 100 = -79.73%
Formula
Percentage change = [(30 - 148) / 148] x 100
Subtract the new number by the original number
30 - 148 = -118
-118 ÷ 148 = -0.7972972972972973
-0.7972972972972973 x 100 = -79.73%