-20.99% is the change from 786 to 621
Calculation steps:
[( 621 - 786 ) ÷ 786] x 100 = -20.99%
Formula
Percentage change = [(621 - 786) / 786] x 100
Subtract the new number by the original number
621 - 786 = -165
-165 ÷ 786 = -0.2099236641221374
-0.2099236641221374 x 100 = -20.99%