-66.24% is the change from 551 to 186
Calculation steps:
[( 186 - 551 ) ÷ 551] x 100 = -66.24%
Formula
Percentage change = [(186 - 551) / 551] x 100
Subtract the new number by the original number
186 - 551 = -365
-365 ÷ 551 = -0.662431941923775
-0.662431941923775 x 100 = -66.24%