-75.41% is the change from 305 to 75
Calculation steps:
[( 75 - 305 ) ÷ 305] x 100 = -75.41%
Formula
Percentage change = [(75 - 305) / 305] x 100
Subtract the new number by the original number
75 - 305 = -230
-230 ÷ 305 = -0.7540983606557377
-0.7540983606557377 x 100 = -75.41%