-60.53% is the change from 684 to 270
Calculation steps:
[( 270 - 684 ) ÷ 684] x 100 = -60.53%
Formula
Percentage change = [(270 - 684) / 684] x 100
Subtract the new number by the original number
270 - 684 = -414
-414 ÷ 684 = -0.6052631578947368
-0.6052631578947368 x 100 = -60.53%