4.71% is the change from 170 to 178
Calculation steps:
[( 178 - 170 ) ÷ 170] x 100 = 4.71%
Formula
Percentage change = [(178 - 170) / 170] x 100
Subtract the new number by the original number
178 - 170 = 8
8 ÷ 170 = 0.047058823529411764
0.047058823529411764 x 100 = 4.71%