-78% is the change from 509 to 112
Calculation steps:
[( 112 - 509 ) ÷ 509] x 100 = -78%
Formula
Percentage change = [(112 - 509) / 509] x 100
Subtract the new number by the original number
112 - 509 = -397
-397 ÷ 509 = -0.7799607072691552
-0.7799607072691552 x 100 = -78%