-51.93% is the change from 493 to 237
Calculation steps:
[( 237 - 493 ) ÷ 493] x 100 = -51.93%
Formula
Percentage change = [(237 - 493) / 493] x 100
Subtract the new number by the original number
237 - 493 = -256
-256 ÷ 493 = -0.5192697768762677
-0.5192697768762677 x 100 = -51.93%