-85.07% is the change from 623 to 93
Calculation steps:
[( 93 - 623 ) ÷ 623] x 100 = -85.07%
Formula
Percentage change = [(93 - 623) / 623] x 100
Subtract the new number by the original number
93 - 623 = -530
-530 ÷ 623 = -0.8507223113964687
-0.8507223113964687 x 100 = -85.07%