-78.92% is the change from 612 to 129
Calculation steps:
[( 129 - 612 ) ÷ 612] x 100 = -78.92%
Formula
Percentage change = [(129 - 612) / 612] x 100
Subtract the new number by the original number
129 - 612 = -483
-483 ÷ 612 = -0.7892156862745098
-0.7892156862745098 x 100 = -78.92%