163.64% is the change from 209 to 551
Calculation steps:
[( 551 - 209 ) ÷ 209] x 100 = 163.64%
Formula
Percentage change = [(551 - 209) / 209] x 100
Subtract the new number by the original number
551 - 209 = 342
342 ÷ 209 = 1.6363636363636365
1.6363636363636365 x 100 = 163.64%