-3.01% is the change from 930 to 902
Calculation steps:
[( 902 - 930 ) ÷ 930] x 100 = -3.01%
Formula
Percentage change = [(902 - 930) / 930] x 100
Subtract the new number by the original number
902 - 930 = -28
-28 ÷ 930 = -0.030107526881720432
-0.030107526881720432 x 100 = -3.01%