-49.42% is the change from 607 to 307
Calculation steps:
[( 307 - 607 ) ÷ 607] x 100 = -49.42%
Formula
Percentage change = [(307 - 607) / 607] x 100
Subtract the new number by the original number
307 - 607 = -300
-300 ÷ 607 = -0.4942339373970346
-0.4942339373970346 x 100 = -49.42%