-36.37% is the change from 866 to 551
Calculation steps:
[( 551 - 866 ) ÷ 866] x 100 = -36.37%
Formula
Percentage change = [(551 - 866) / 866] x 100
Subtract the new number by the original number
551 - 866 = -315
-315 ÷ 866 = -0.36374133949191684
-0.36374133949191684 x 100 = -36.37%