115.31% is the change from 320 to 689
Calculation steps:
[( 689 - 320 ) ÷ 320] x 100 = 115.31%
Formula
Percentage change = [(689 - 320) / 320] x 100
Subtract the new number by the original number
689 - 320 = 369
369 ÷ 320 = 1.153125
1.153125 x 100 = 115.31%