-24.46% is the change from 830 to 627
Calculation steps:
[( 627 - 830 ) ÷ 830] x 100 = -24.46%
Formula
Percentage change = [(627 - 830) / 830] x 100
Subtract the new number by the original number
627 - 830 = -203
-203 ÷ 830 = -0.24457831325301205
-0.24457831325301205 x 100 = -24.46%