-97.33% is the change from 150 to 4
Calculation steps:
[( 4 - 150 ) ÷ 150] x 100 = -97.33%
Formula
Percentage change = [(4 - 150) / 150] x 100
Subtract the new number by the original number
4 - 150 = -146
-146 ÷ 150 = -0.9733333333333334
-0.9733333333333334 x 100 = -97.33%