-42.47% is the change from 551 to 317
Calculation steps:
[( 317 - 551 ) ÷ 551] x 100 = -42.47%
Formula
Percentage change = [(317 - 551) / 551] x 100
Subtract the new number by the original number
317 - 551 = -234
-234 ÷ 551 = -0.4246823956442831
-0.4246823956442831 x 100 = -42.47%