-19.04% is the change from 767 to 621
Calculation steps:
[( 621 - 767 ) ÷ 767] x 100 = -19.04%
Formula
Percentage change = [(621 - 767) / 767] x 100
Subtract the new number by the original number
621 - 767 = -146
-146 ÷ 767 = -0.19035202086049544
-0.19035202086049544 x 100 = -19.04%