-49.84% is the change from 305 to 153
Calculation steps:
[( 153 - 305 ) ÷ 305] x 100 = -49.84%
Formula
Percentage change = [(153 - 305) / 305] x 100
Subtract the new number by the original number
153 - 305 = -152
-152 ÷ 305 = -0.49836065573770494
-0.49836065573770494 x 100 = -49.84%