-81.47% is the change from 545 to 101
Calculation steps:
[( 101 - 545 ) ÷ 545] x 100 = -81.47%
Formula
Percentage change = [(101 - 545) / 545] x 100
Subtract the new number by the original number
101 - 545 = -444
-444 ÷ 545 = -0.8146788990825689
-0.8146788990825689 x 100 = -81.47%