30.78% is the change from 523 to 684
Calculation steps:
[( 684 - 523 ) ÷ 523] x 100 = 30.78%
Formula
Percentage change = [(684 - 523) / 523] x 100
Subtract the new number by the original number
684 - 523 = 161
161 ÷ 523 = 0.3078393881453155
0.3078393881453155 x 100 = 30.78%