-28.44% is the change from 770 to 551
Calculation steps:
[( 551 - 770 ) ÷ 770] x 100 = -28.44%
Formula
Percentage change = [(551 - 770) / 770] x 100
Subtract the new number by the original number
551 - 770 = -219
-219 ÷ 770 = -0.2844155844155844
-0.2844155844155844 x 100 = -28.44%