23.19% is the change from 690 to 850
Calculation steps:
[( 850 - 690 ) ÷ 690] x 100 = 23.19%
Formula
Percentage change = [(850 - 690) / 690] x 100
Subtract the new number by the original number
850 - 690 = 160
160 ÷ 690 = 0.2318840579710145
0.2318840579710145 x 100 = 23.19%