Matic_APR_Calcualtion.js

validators.result.map(async item => {
                const maticValidatorContract = new this.web3.eth.Contract(
                    maticABI,
                    item.contractAddress
                );

                const stakeManagerContractAddress = await maticValidatorContract.methods
                    .stakeManager()
                    .call()
                    .then(response => response);

                const stakeManagerContract = new this.web3.eth.Contract(
                    stakeManagerABI,
                    stakeManagerContractAddress
                );

                const checkPointRewards = await stakeManagerContract.methods.CHECKPOINT_REWARD.call().then(
                    response => response
                );

                const currentValidatorSetTotalStake = await stakeManagerContract.methods.currentValidatorSetTotalStake
                    .call()
                    .then(response => response);

                const bnCheckPointRewards = new BigNumber(checkPointRewards);
                const bncurrentValidatorSetTotalStake = new BigNumber(
                    currentValidatorSetTotalStake
                );
                const yearlyCheckpointCount = new BigNumber(17520);

                const yearlyRewardAmount = yearlyCheckpointCount.multipliedBy(
                    bnCheckPointRewards
                );

                const APR = yearlyRewardAmount.dividedBy(
                    bncurrentValidatorSetTotalStake
                );

                item.apr = APR.toNumber();
                return item;
            })