-31.04% is the change from 538 to 371
Calculation steps:
[( 371 - 538 ) ÷ 538] x 100 = -31.04%
Formula
Percentage change = [(371 - 538) / 538] x 100
Subtract the new number by the original number
371 - 538 = -167
-167 ÷ 538 = -0.3104089219330855
-0.3104089219330855 x 100 = -31.04%