897.62% is the change from 84 to 838
Calculation steps:
[( 838 - 84 ) ÷ 84] x 100 = 897.62%
Formula
Percentage change = [(838 - 84) / 84] x 100
Subtract the new number by the original number
838 - 84 = 754
754 ÷ 84 = 8.976190476190476
8.976190476190476 x 100 = 897.62%