-80.33% is the change from 305 to 60
Calculation steps:
[( 60 - 305 ) ÷ 305] x 100 = -80.33%
Formula
Percentage change = [(60 - 305) / 305] x 100
Subtract the new number by the original number
60 - 305 = -245
-245 ÷ 305 = -0.8032786885245902
-0.8032786885245902 x 100 = -80.33%