-70.2% is the change from 453 to 135
Calculation steps:
[( 135 - 453 ) ÷ 453] x 100 = -70.2%
Formula
Percentage change = [(135 - 453) / 453] x 100
Subtract the new number by the original number
135 - 453 = -318
-318 ÷ 453 = -0.7019867549668874
-0.7019867549668874 x 100 = -70.2%