-84.94% is the change from 551 to 83
Calculation steps:
[( 83 - 551 ) ÷ 551] x 100 = -84.94%
Formula
Percentage change = [(83 - 551) / 551] x 100
Subtract the new number by the original number
83 - 551 = -468
-468 ÷ 551 = -0.8493647912885662
-0.8493647912885662 x 100 = -84.94%