231.73% is the change from 208 to 690
Calculation steps:
[( 690 - 208 ) ÷ 208] x 100 = 231.73%
Formula
Percentage change = [(690 - 208) / 208] x 100
Subtract the new number by the original number
690 - 208 = 482
482 ÷ 208 = 2.3173076923076925
2.3173076923076925 x 100 = 231.73%