-51.63% is the change from 490 to 237
Calculation steps:
[( 237 - 490 ) ÷ 490] x 100 = -51.63%
Formula
Percentage change = [(237 - 490) / 490] x 100
Subtract the new number by the original number
237 - 490 = -253
-253 ÷ 490 = -0.5163265306122449
-0.5163265306122449 x 100 = -51.63%