-80.43% is the change from 690 to 135
Calculation steps:
[( 135 - 690 ) ÷ 690] x 100 = -80.43%
Formula
Percentage change = [(135 - 690) / 690] x 100
Subtract the new number by the original number
135 - 690 = -555
-555 ÷ 690 = -0.8043478260869565
-0.8043478260869565 x 100 = -80.43%