-83.12% is the change from 551 to 93
Calculation steps:
[( 93 - 551 ) ÷ 551] x 100 = -83.12%
Formula
Percentage change = [(93 - 551) / 551] x 100
Subtract the new number by the original number
93 - 551 = -458
-458 ÷ 551 = -0.8312159709618875
-0.8312159709618875 x 100 = -83.12%