-77.33% is the change from 150 to 34
Calculation steps:
[( 34 - 150 ) ÷ 150] x 100 = -77.33%
Formula
Percentage change = [(34 - 150) / 150] x 100
Subtract the new number by the original number
34 - 150 = -116
-116 ÷ 150 = -0.7733333333333333
-0.7733333333333333 x 100 = -77.33%