-30.27% is the change from 925 to 645
Calculation steps:
[( 645 - 925 ) ÷ 925] x 100 = -30.27%
Formula
Percentage change = [(645 - 925) / 925] x 100
Subtract the new number by the original number
645 - 925 = -280
-280 ÷ 925 = -0.3027027027027027
-0.3027027027027027 x 100 = -30.27%