-34.33% is the change from 839 to 551
Calculation steps:
[( 551 - 839 ) ÷ 839] x 100 = -34.33%
Formula
Percentage change = [(551 - 839) / 839] x 100
Subtract the new number by the original number
551 - 839 = -288
-288 ÷ 839 = -0.3432657926102503
-0.3432657926102503 x 100 = -34.33%