-80.52% is the change from 154 to 30
Calculation steps:
[( 30 - 154 ) ÷ 154] x 100 = -80.52%
Formula
Percentage change = [(30 - 154) / 154] x 100
Subtract the new number by the original number
30 - 154 = -124
-124 ÷ 154 = -0.8051948051948052
-0.8051948051948052 x 100 = -80.52%