66.18% is the change from 550 to 914
Calculation steps:
[( 914 - 550 ) ÷ 550] x 100 = 66.18%
Formula
Percentage change = [(914 - 550) / 550] x 100
Subtract the new number by the original number
914 - 550 = 364
364 ÷ 550 = 0.6618181818181819
0.6618181818181819 x 100 = 66.18%