-24.62% is the change from 199 to 150
Calculation steps:
[( 150 - 199 ) ÷ 199] x 100 = -24.62%
Formula
Percentage change = [(150 - 199) / 199] x 100
Subtract the new number by the original number
150 - 199 = -49
-49 ÷ 199 = -0.24623115577889448
-0.24623115577889448 x 100 = -24.62%