-37.35% is the change from 490 to 307
Calculation steps:
[( 307 - 490 ) ÷ 490] x 100 = -37.35%
Formula
Percentage change = [(307 - 490) / 490] x 100
Subtract the new number by the original number
307 - 490 = -183
-183 ÷ 490 = -0.373469387755102
-0.373469387755102 x 100 = -37.35%