-12.5% is the change from 56 to 49
Calculation steps:
[( 49 - 56 ) ÷ 56] x 100 = -12.5%
Formula
Percentage change = [(49 - 56) / 56] x 100
Subtract the new number by the original number
49 - 56 = -7
-7 ÷ 56 = -0.125
-0.125 x 100 = -12.5%
Example