-58.62% is the change from 551 to 228
Calculation steps:
[( 228 - 551 ) ÷ 551] x 100 = -58.62%
Formula
Percentage change = [(228 - 551) / 551] x 100
Subtract the new number by the original number
228 - 551 = -323
-323 ÷ 551 = -0.5862068965517241
-0.5862068965517241 x 100 = -58.62%