490.36% is the change from 166 to 980
Calculation steps:
[( 980 - 166 ) ÷ 166] x 100 = 490.36%
Formula
Percentage change = [(980 - 166) / 166] x 100
Subtract the new number by the original number
980 - 166 = 814
814 ÷ 166 = 4.903614457831325
4.903614457831325 x 100 = 490.36%