200% is the change from 202 to 606
Calculation steps:
[( 606 - 202 ) ÷ 202] x 100 = 200%
Formula
Percentage change = [(606 - 202) / 202] x 100
Subtract the new number by the original number
606 - 202 = 404
404 ÷ 202 = 2
2 x 100 = 200%
Example