-37.09% is the change from 488 to 307
Calculation steps:
[( 307 - 488 ) ÷ 488] x 100 = -37.09%
Formula
Percentage change = [(307 - 488) / 488] x 100
Subtract the new number by the original number
307 - 488 = -181
-181 ÷ 488 = -0.3709016393442623
-0.3709016393442623 x 100 = -37.09%