-86.49% is the change from 555 to 75
Calculation steps:
[( 75 - 555 ) ÷ 555] x 100 = -86.49%
Formula
Percentage change = [(75 - 555) / 555] x 100
Subtract the new number by the original number
75 - 555 = -480
-480 ÷ 555 = -0.8648648648648649
-0.8648648648648649 x 100 = -86.49%