-44.04% is the change from 545 to 305
Calculation steps:
[( 305 - 545 ) ÷ 545] x 100 = -44.04%
Formula
Percentage change = [(305 - 545) / 545] x 100
Subtract the new number by the original number
305 - 545 = -240
-240 ÷ 545 = -0.44036697247706424
-0.44036697247706424 x 100 = -44.04%