72.18% is the change from 550 to 947
Calculation steps:
[( 947 - 550 ) ÷ 550] x 100 = 72.18%
Formula
Percentage change = [(947 - 550) / 550] x 100
Subtract the new number by the original number
947 - 550 = 397
397 ÷ 550 = 0.7218181818181818
0.7218181818181818 x 100 = 72.18%