174.7% is the change from 166 to 456
Calculation steps:
[( 456 - 166 ) ÷ 166] x 100 = 174.7%
Formula
Percentage change = [(456 - 166) / 166] x 100
Subtract the new number by the original number
456 - 166 = 290
290 ÷ 166 = 1.7469879518072289
1.7469879518072289 x 100 = 174.7%