-41.9% is the change from 938 to 545
Calculation steps:
[( 545 - 938 ) ÷ 938] x 100 = -41.9%
Formula
Percentage change = [(545 - 938) / 938] x 100
Subtract the new number by the original number
545 - 938 = -393
-393 ÷ 938 = -0.4189765458422175
-0.4189765458422175 x 100 = -41.9%