73.27% is the change from 550 to 953
Calculation steps:
[( 953 - 550 ) ÷ 550] x 100 = 73.27%
Formula
Percentage change = [(953 - 550) / 550] x 100
Subtract the new number by the original number
953 - 550 = 403
403 ÷ 550 = 0.7327272727272728
0.7327272727272728 x 100 = 73.27%