-3.27% is the change from 551 to 533
Calculation steps:
[( 533 - 551 ) ÷ 551] x 100 = -3.27%
Formula
Percentage change = [(533 - 551) / 551] x 100
Subtract the new number by the original number
533 - 551 = -18
-18 ÷ 551 = -0.032667876588021776
-0.032667876588021776 x 100 = -3.27%