-45.95% is the change from 938 to 507
Calculation steps:
[( 507 - 938 ) ÷ 938] x 100 = -45.95%
Formula
Percentage change = [(507 - 938) / 938] x 100
Subtract the new number by the original number
507 - 938 = -431
-431 ÷ 938 = -0.4594882729211087
-0.4594882729211087 x 100 = -45.95%