486.75% is the change from 166 to 974
Calculation steps:
[( 974 - 166 ) ÷ 166] x 100 = 486.75%
Formula
Percentage change = [(974 - 166) / 166] x 100
Subtract the new number by the original number
974 - 166 = 808
808 ÷ 166 = 4.867469879518072
4.867469879518072 x 100 = 486.75%