-45.68% is the change from 937 to 509
Calculation steps:
[( 509 - 937 ) ÷ 937] x 100 = -45.68%
Formula
Percentage change = [(509 - 937) / 937] x 100
Subtract the new number by the original number
509 - 937 = -428
-428 ÷ 937 = -0.4567769477054429
-0.4567769477054429 x 100 = -45.68%