-51.48% is the change from 305 to 148
Calculation steps:
[( 148 - 305 ) ÷ 305] x 100 = -51.48%
Formula
Percentage change = [(148 - 305) / 305] x 100
Subtract the new number by the original number
148 - 305 = -157
-157 ÷ 305 = -0.5147540983606558
-0.5147540983606558 x 100 = -51.48%