-74.55% is the change from 829 to 211
Calculation steps:
[( 211 - 829 ) ÷ 829] x 100 = -74.55%
Formula
Percentage change = [(211 - 829) / 829] x 100
Subtract the new number by the original number
211 - 829 = -618
-618 ÷ 829 = -0.7454764776839565
-0.7454764776839565 x 100 = -74.55%