32.53% is the change from 415 to 550
Calculation steps:
[( 550 - 415 ) ÷ 415] x 100 = 32.53%
Formula
Percentage change = [(550 - 415) / 415] x 100
Subtract the new number by the original number
550 - 415 = 135
135 ÷ 415 = 0.3253012048192771
0.3253012048192771 x 100 = 32.53%