498.8% is the change from 166 to 994
Calculation steps:
[( 994 - 166 ) ÷ 166] x 100 = 498.8%
Formula
Percentage change = [(994 - 166) / 166] x 100
Subtract the new number by the original number
994 - 166 = 828
828 ÷ 166 = 4.9879518072289155
4.9879518072289155 x 100 = 498.8%