488.55% is the change from 166 to 977
Calculation steps:
[( 977 - 166 ) ÷ 166] x 100 = 488.55%
Formula
Percentage change = [(977 - 166) / 166] x 100
Subtract the new number by the original number
977 - 166 = 811
811 ÷ 166 = 4.885542168674699
4.885542168674699 x 100 = 488.55%