-33.45% is the change from 828 to 551
Calculation steps:
[( 551 - 828 ) ÷ 828] x 100 = -33.45%
Formula
Percentage change = [(551 - 828) / 828] x 100
Subtract the new number by the original number
551 - 828 = -277
-277 ÷ 828 = -0.33454106280193235
-0.33454106280193235 x 100 = -33.45%