-62.07% is the change from 551 to 209
Calculation steps:
[( 209 - 551 ) ÷ 551] x 100 = -62.07%
Formula
Percentage change = [(209 - 551) / 551] x 100
Subtract the new number by the original number
209 - 551 = -342
-342 ÷ 551 = -0.6206896551724138
-0.6206896551724138 x 100 = -62.07%