49.4% is the change from 166 to 248
Calculation steps:
[( 248 - 166 ) ÷ 166] x 100 = 49.4%
Formula
Percentage change = [(248 - 166) / 166] x 100
Subtract the new number by the original number
248 - 166 = 82
82 ÷ 166 = 0.4939759036144578
0.4939759036144578 x 100 = 49.4%