-52.46% is the change from 305 to 145
Calculation steps:
[( 145 - 305 ) ÷ 305] x 100 = -52.46%
Formula
Percentage change = [(145 - 305) / 305] x 100
Subtract the new number by the original number
145 - 305 = -160
-160 ÷ 305 = -0.5245901639344263
-0.5245901639344263 x 100 = -52.46%