21.32% is the change from 530 to 643
Calculation steps:
[( 643 - 530 ) ÷ 530] x 100 = 21.32%
Formula
Percentage change = [(643 - 530) / 530] x 100
Subtract the new number by the original number
643 - 530 = 113
113 ÷ 530 = 0.21320754716981133
0.21320754716981133 x 100 = 21.32%