-34.22% is the change from 830 to 546
Calculation steps:
[( 546 - 830 ) ÷ 830] x 100 = -34.22%
Formula
Percentage change = [(546 - 830) / 830] x 100
Subtract the new number by the original number
546 - 830 = -284
-284 ÷ 830 = -0.3421686746987952
-0.3421686746987952 x 100 = -34.22%