81.38% is the change from 537 to 974
Calculation steps:
[( 974 - 537 ) ÷ 537] x 100 = 81.38%
Formula
Percentage change = [(974 - 537) / 537] x 100
Subtract the new number by the original number
974 - 537 = 437
437 ÷ 537 = 0.813780260707635
0.813780260707635 x 100 = 81.38%