28.3% is the change from 530 to 680
Calculation steps:
[( 680 - 530 ) ÷ 530] x 100 = 28.3%
Formula
Percentage change = [(680 - 530) / 530] x 100
Subtract the new number by the original number
680 - 530 = 150
150 ÷ 530 = 0.2830188679245283
0.2830188679245283 x 100 = 28.3%