-29.4% is the change from 551 to 389
Calculation steps:
[( 389 - 551 ) ÷ 551] x 100 = -29.4%
Formula
Percentage change = [(389 - 551) / 551] x 100
Subtract the new number by the original number
389 - 551 = -162
-162 ÷ 551 = -0.294010889292196
-0.294010889292196 x 100 = -29.4%