12.69% is the change from 591 to 666
Calculation steps:
[( 666 - 591 ) ÷ 591] x 100 = 12.69%
Formula
Percentage change = [(666 - 591) / 591] x 100
Subtract the new number by the original number
666 - 591 = 75
75 ÷ 591 = 0.12690355329949238
0.12690355329949238 x 100 = 12.69%