-9.2% is the change from 163 to 148
Calculation steps:
[( 148 - 163 ) ÷ 163] x 100 = -9.2%
Formula
Percentage change = [(148 - 163) / 163] x 100
Subtract the new number by the original number
148 - 163 = -15
-15 ÷ 163 = -0.09202453987730061
-0.09202453987730061 x 100 = -9.2%