8.18% is the change from 550 to 595
Calculation steps:
[( 595 - 550 ) ÷ 550] x 100 = 8.18%
Formula
Percentage change = [(595 - 550) / 550] x 100
Subtract the new number by the original number
595 - 550 = 45
45 ÷ 550 = 0.08181818181818182
0.08181818181818182 x 100 = 8.18%