-60.93% is the change from 691 to 270
Calculation steps:
[( 270 - 691 ) ÷ 691] x 100 = -60.93%
Formula
Percentage change = [(270 - 691) / 691] x 100
Subtract the new number by the original number
270 - 691 = -421
-421 ÷ 691 = -0.6092619392185239
-0.6092619392185239 x 100 = -60.93%