-19.67% is the change from 305 to 245
Calculation steps:
[( 245 - 305 ) ÷ 305] x 100 = -19.67%
Formula
Percentage change = [(245 - 305) / 305] x 100
Subtract the new number by the original number
245 - 305 = -60
-60 ÷ 305 = -0.19672131147540983
-0.19672131147540983 x 100 = -19.67%