-0.98% is the change from 305 to 302
Calculation steps:
[( 302 - 305 ) ÷ 305] x 100 = -0.98%
Formula
Percentage change = [(302 - 305) / 305] x 100
Subtract the new number by the original number
302 - 305 = -3
-3 ÷ 305 = -0.009836065573770493
-0.009836065573770493 x 100 = -0.98%