45.03% is the change from 171 to 248
Calculation steps:
[( 248 - 171 ) ÷ 171] x 100 = 45.03%
Formula
Percentage change = [(248 - 171) / 171] x 100
Subtract the new number by the original number
248 - 171 = 77
77 ÷ 171 = 0.4502923976608187
0.4502923976608187 x 100 = 45.03%