-75.54% is the change from 830 to 203
Calculation steps:
[( 203 - 830 ) ÷ 830] x 100 = -75.54%
Formula
Percentage change = [(203 - 830) / 830] x 100
Subtract the new number by the original number
203 - 830 = -627
-627 ÷ 830 = -0.755421686746988
-0.755421686746988 x 100 = -75.54%