-86.35% is the change from 403 to 55
Calculation steps:
[( 55 - 403 ) ÷ 403] x 100 = -86.35%
Formula
Percentage change = [(55 - 403) / 403] x 100
Subtract the new number by the original number
55 - 403 = -348
-348 ÷ 403 = -0.8635235732009926
-0.8635235732009926 x 100 = -86.35%