-38.29% is the change from 551 to 340
Calculation steps:
[( 340 - 551 ) ÷ 551] x 100 = -38.29%
Formula
Percentage change = [(340 - 551) / 551] x 100
Subtract the new number by the original number
340 - 551 = -211
-211 ÷ 551 = -0.38294010889292196
-0.38294010889292196 x 100 = -38.29%