-61.71% is the change from 551 to 211
Calculation steps:
[( 211 - 551 ) ÷ 551] x 100 = -61.71%
Formula
Percentage change = [(211 - 551) / 551] x 100
Subtract the new number by the original number
211 - 551 = -340
-340 ÷ 551 = -0.617059891107078
-0.617059891107078 x 100 = -61.71%