-99.63% is the change from 545 to 2
Calculation steps:
[( 2 - 545 ) ÷ 545] x 100 = -99.63%
Formula
Percentage change = [(2 - 545) / 545] x 100
Subtract the new number by the original number
2 - 545 = -543
-543 ÷ 545 = -0.9963302752293578
-0.9963302752293578 x 100 = -99.63%