-75.72% is the change from 556 to 135
Calculation steps:
[( 135 - 556 ) ÷ 556] x 100 = -75.72%
Formula
Percentage change = [(135 - 556) / 556] x 100
Subtract the new number by the original number
135 - 556 = -421
-421 ÷ 556 = -0.7571942446043165
-0.7571942446043165 x 100 = -75.72%