-63.3% is the change from 545 to 200
Calculation steps:
[( 200 - 545 ) ÷ 545] x 100 = -63.3%
Formula
Percentage change = [(200 - 545) / 545] x 100
Subtract the new number by the original number
200 - 545 = -345
-345 ÷ 545 = -0.6330275229357798
-0.6330275229357798 x 100 = -63.3%