-39.98% is the change from 918 to 551
Calculation steps:
[( 551 - 918 ) ÷ 918] x 100 = -39.98%
Formula
Percentage change = [(551 - 918) / 918] x 100
Subtract the new number by the original number
551 - 918 = -367
-367 ÷ 918 = -0.3997821350762527
-0.3997821350762527 x 100 = -39.98%