9.2% is the change from 163 to 178
Calculation steps:
[( 178 - 163 ) ÷ 163] x 100 = 9.2%
Formula
Percentage change = [(178 - 163) / 163] x 100
Subtract the new number by the original number
178 - 163 = 15
15 ÷ 163 = 0.09202453987730061
0.09202453987730061 x 100 = 9.2%