21.01% is the change from 690 to 835
Calculation steps:
[( 835 - 690 ) ÷ 690] x 100 = 21.01%
Formula
Percentage change = [(835 - 690) / 690] x 100
Subtract the new number by the original number
835 - 690 = 145
145 ÷ 690 = 0.21014492753623187
0.21014492753623187 x 100 = 21.01%