-50.64% is the change from 547 to 270
Calculation steps:
[( 270 - 547 ) ÷ 547] x 100 = -50.64%
Formula
Percentage change = [(270 - 547) / 547] x 100
Subtract the new number by the original number
270 - 547 = -277
-277 ÷ 547 = -0.506398537477148
-0.506398537477148 x 100 = -50.64%