121.54% is the change from 311 to 689
Calculation steps:
[( 689 - 311 ) ÷ 311] x 100 = 121.54%
Formula
Percentage change = [(689 - 311) / 311] x 100
Subtract the new number by the original number
689 - 311 = 378
378 ÷ 311 = 1.2154340836012862
1.2154340836012862 x 100 = 121.54%