-52.63% is the change from 551 to 261
Calculation steps:
[( 261 - 551 ) ÷ 551] x 100 = -52.63%
Formula
Percentage change = [(261 - 551) / 551] x 100
Subtract the new number by the original number
261 - 551 = -290
-290 ÷ 551 = -0.5263157894736842
-0.5263157894736842 x 100 = -52.63%