-30.09% is the change from 545 to 381
Calculation steps:
[( 381 - 545 ) ÷ 545] x 100 = -30.09%
Formula
Percentage change = [(381 - 545) / 545] x 100
Subtract the new number by the original number
381 - 545 = -164
-164 ÷ 545 = -0.30091743119266057
-0.30091743119266057 x 100 = -30.09%