245% is the change from 200 to 690
Calculation steps:
[( 690 - 200 ) ÷ 200] x 100 = 245%
Formula
Percentage change = [(690 - 200) / 200] x 100
Subtract the new number by the original number
690 - 200 = 490
490 ÷ 200 = 2.45
2.45 x 100 = 245%
Example