-18.95% is the change from 765 to 620
Calculation steps:
[( 620 - 765 ) ÷ 765] x 100 = -18.95%
Formula
Percentage change = [(620 - 765) / 765] x 100
Subtract the new number by the original number
620 - 765 = -145
-145 ÷ 765 = -0.1895424836601307
-0.1895424836601307 x 100 = -18.95%