-85.05% is the change from 555 to 83
Calculation steps:
[( 83 - 555 ) ÷ 555] x 100 = -85.05%
Formula
Percentage change = [(83 - 555) / 555] x 100
Subtract the new number by the original number
83 - 555 = -472
-472 ÷ 555 = -0.8504504504504504
-0.8504504504504504 x 100 = -85.05%