200% is the change from 166 to 498
Calculation steps:
[( 498 - 166 ) ÷ 166] x 100 = 200%
Formula
Percentage change = [(498 - 166) / 166] x 100
Subtract the new number by the original number
498 - 166 = 332
332 ÷ 166 = 2
2 x 100 = 200%
Example