-78.89% is the change from 611 to 129
Calculation steps:
[( 129 - 611 ) ÷ 611] x 100 = -78.89%
Formula
Percentage change = [(129 - 611) / 611] x 100
Subtract the new number by the original number
129 - 611 = -482
-482 ÷ 611 = -0.7888707037643208
-0.7888707037643208 x 100 = -78.89%