-78.1% is the change from 612 to 134
Calculation steps:
[( 134 - 612 ) ÷ 612] x 100 = -78.1%
Formula
Percentage change = [(134 - 612) / 612] x 100
Subtract the new number by the original number
134 - 612 = -478
-478 ÷ 612 = -0.7810457516339869
-0.7810457516339869 x 100 = -78.1%