-28.43% is the change from 830 to 594
Calculation steps:
[( 594 - 830 ) ÷ 830] x 100 = -28.43%
Formula
Percentage change = [(594 - 830) / 830] x 100
Subtract the new number by the original number
594 - 830 = -236
-236 ÷ 830 = -0.28433734939759037
-0.28433734939759037 x 100 = -28.43%