1243.9% is the change from 41 to 551
Calculation steps:
[( 551 - 41 ) ÷ 41] x 100 = 1243.9%
Formula
Percentage change = [(551 - 41) / 41] x 100
Subtract the new number by the original number
551 - 41 = 510
510 ÷ 41 = 12.439024390243903
12.439024390243903 x 100 = 1243.9%