-2.04% is the change from 49 to 48
Calculation steps:
[( 48 - 49 ) ÷ 49] x 100 = -2.04%
Formula
Percentage change = [(48 - 49) / 49] x 100
Subtract the new number by the original number
48 - 49 = -1
-1 ÷ 49 = -0.02040816326530612
-0.02040816326530612 x 100 = -2.04%