-49.72% is the change from 537 to 270
Calculation steps:
[( 270 - 537 ) ÷ 537] x 100 = -49.72%
Formula
Percentage change = [(270 - 537) / 537] x 100
Subtract the new number by the original number
270 - 537 = -267
-267 ÷ 537 = -0.4972067039106145
-0.4972067039106145 x 100 = -49.72%